{"id":300959,"date":"2023-12-29T19:53:33","date_gmt":"2023-12-29T12:53:33","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=300959"},"modified":"2023-12-29T19:53:33","modified_gmt":"2023-12-29T12:53:33","slug":"so-nguyen-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/","title":{"rendered":"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Kh\u00e1i ni\u1ec7m s\u1ed1 nguy\u00ean l\u00e0 g\u00ec \u0111ang \u0111\u01b0\u1ee3c chia s\u1ebb trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc t\u1ea1i Vi\u1ec7t Nam. \u0110\u00e2y l\u00e0 kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n m\u00e0 b\u1ea1n h\u1ecdc sinh n\u00e0o c\u0169ng ph\u1ea3i t\u00ecm hi\u1ec3u. T\u1eeb \u0111\u00f3 b\u1ea1n s\u1ebd l\u00e0m nh\u1eefng b\u00e0i t\u1eadp to\u00e1n nhanh ch\u00f3ng h\u01a1n. N\u1ebfu b\u1ea1n \u0111\u00e3 h\u1ecdc qua ki\u1ebfn th\u1ee9c n\u00e0y ho\u1eb7c ch\u01b0a bi\u1ebft \u0111\u1ebfn th\u00ec c\u00f3 th\u1ec3 xem b\u00e0i vi\u1ebft sau. B\u00e0i vi\u1ebft s\u1ebd gi\u00fap b\u1ea1n t\u00ecm hi\u1ec3u k\u1ef9 h\u01a1n v\u1ec1 s\u1ed1 nguy\u00ean v\u00e0 s\u1ed1 th\u1ef1c trong to\u00e1n h\u1ecdc.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">S\u1ed1 nguy\u00ean l\u00e0 g\u00ec?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">S\u1ed1 nguy\u00ean l\u00e0 m\u1ed9t t\u1ed5 h\u1ee3p g\u1ed3m s\u1ed1 0, c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean hay c\u00f2n g\u1ecdi l\u00e0 s\u1ed1 nguy\u00ean d\u01b0\u01a1ng c\u00f9ng c\u00f9ng s\u1ed1 \u0111\u1ed1i c\u1ee7a ch\u00ednh n\u00f3 hay c\u00f2n g\u1ecdi l\u00e0 s\u1ed1 nguy\u00ean \u00e2m. T\u1ed5 h\u1ee3p nh\u1eefng s\u1ed1 nguy\u00ean n\u00e0y kh\u00f4ng c\u00f3 gi\u1edbi h\u1ea1n v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ebfm \u0111\u01b0\u1ee3c. Ng\u01b0\u1eddi ta th\u01b0\u1eddng k\u00fd hi\u1ec7u t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 nguy\u00ean n\u00e0y l\u00e0 Z.<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-1.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-1-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-1-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-300962 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-1.jpg\" alt=\"so-nguyen-la-gi-1\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-1.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-1-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-1-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h2><span style=\"font-weight: 400;\">S\u1ed1 nguy\u00ean c\u00f3 nh\u1eefng lo\u1ea1i n\u00e0o?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Hi\u1ec7n nay t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 nguy\u00ean \u0111\u01b0\u1ee3c ph\u00e2n ra hai lo\u1ea1i. \u0110\u00f3 l\u00e0 s\u1ed1 nguy\u00ean \u00e2m v\u00e0 s\u1ed1 nguy\u00ean d\u01b0\u01a1ng. Trong \u0111\u00f3:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">C\u00e1c s\u1ed1 nguy\u00ean d\u01b0\u01a1ng: \u0110\u00e2y l\u00e0 c\u00e1c s\u1ed1 nguy\u00ean &gt; 0 v\u00e0 c\u00f3 k\u00fd hi\u1ec7u ng\u1eafn g\u1ecdn l\u00e0 Z+<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">C\u00e1c s\u1ed1 nguy\u00ean \u00e2m: \u0110\u00e2y l\u00e0 t\u1eadp h\u1ee3p nh\u1eefng s\u1ed1 nguy\u00ean &lt; 0 v\u00e0 c\u00f3 k\u00fd hi\u1ec7u ng\u1eafn g\u1ecdn l\u00e0 Z-<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u1eadp h\u1ee3p bao g\u1ed3m nh\u1eefng s\u1ed1 nguy\u00ean d\u00e2m ho\u1eb7c d\u01b0\u01a1ng \u1edf tr\u00ean kh\u00f4ng ch\u1ee9a s\u1ed1 0.<\/span><\/li>\n<\/ul>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-2.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-2-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-2-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"size-full wp-image-300963 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-2.jpg\" alt=\"so-nguyen-la-gi-2\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-2.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-2-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-2-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">Ta c\u00f3 v\u00ed d\u1ee5 nh\u01b0 sau:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 Z+ bao g\u1ed3m: 1, 2, 3, 4,&#8230;<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 Z- bao g\u1ed3m: -1, -2, -3, -4,&#8230;<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u1eefng s\u1ed1 nh\u01b0 5, 1, -978, -94 l\u00e0 nh\u1eefng s\u1ed1 thu\u1ed9c t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Nh\u1eefng s\u1ed1 nh\u01b0 -26 thu\u1ed9c t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean, s\u1ed1 0 thu\u1ed9c t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">S\u1ed1 0 thu\u1ed9c t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean d\u01b0\u01a1ng hay nguy\u00ean \u00e2m?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Nh\u01b0 \u0111\u00e3 t\u00ecm hi\u1ec3u \u1edf ph\u1ea7n s\u1ed1 nguy\u00ean l\u00e0 g\u00ec \u1edf tr\u00ean th\u00ec ch\u00fang ta \u0111\u00e3 bi\u1ebft s\u1ed1 0 \u0111\u01b0\u1ee3c coi l\u00e0 s\u1ed1 nguy\u00ean \u0111\u1eb7c bi\u1ec7t. V\u00ec n\u00f3 \u1edf ch\u00ednh gi\u1eefa c\u1ee7a t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 nguy\u00ean d\u01b0\u01a1ng v\u00e0 nguy\u00ean \u00e2m. Nh\u01b0ng n\u00f3 l\u1ea1i kh\u00f4ng ph\u1ea3i s\u1ed1 giao gi\u1eefa 2 t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean n\u00e0y. \u0110\u1ed3ng th\u1eddi s\u1ed1 0 c\u0169ng kh\u00f4ng n\u1eb1m trong 2 t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean \u00e2m hay nguy\u00ean d\u01b0\u01a1ng.<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-3.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-3-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-3-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img decoding=\"async\" class=\"size-full wp-image-300964 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-3.jpg\" alt=\"so-nguyen-la-gi-3\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-3.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-3-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-3-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">Khi th\u1ec3 hi\u1ec7n t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean tr\u00ean m\u1ed9t tr\u1ee5c s\u1ed1 d\u1ea1ng n\u1eb1m ngang th\u00ec t\u1eadp h\u1ee3p Z+ n\u1eb1m ph\u00eda b\u00ean ph\u1ea3i c\u1ee7a s\u1ed1 0. C\u00f2n t\u1eadp h\u1ee3p Z- s\u1ebd n\u1eb1m \u1edf ph\u00eda tr\u00e1i c\u1ee7a s\u1ed1 0. C\u00e1c t\u1eadp h\u1ee3p n\u00e0y c\u00f3 t\u00ednh ch\u1ea5t v\u00f4 h\u1ea1n. N\u00f3 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng ho\u00e0n to\u00e0n kh\u00f4ng t\u1ed3n t\u1ea1i \u0111i\u1ec3m m\u00fat. Chi\u1ec1u h\u01b0\u1edbng m\u0169i t\u00ean c\u1ee7a tr\u1ee5c s\u1ed1 s\u1ebd \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n t\u1eeb ph\u00eda b\u00ean tr\u00e1i qua b\u00ean ph\u1ea3i. \u0110\u1ed3ng th\u1eddi n\u00f3 s\u1ebd quy \u0111\u1ecbnh theo chi\u1ec1u d\u01b0\u01a1ng.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Nh\u01b0 v\u1eady th\u00ec s\u1ed1 0 ch\u00ednh l\u00e0 \u0111i\u1ec3m g\u1ed1c thu\u1ed9c tr\u1ee5c s\u1ed1 tr\u00ean. N\u00f3 n\u1eb1m \u1edf trung t\u00e2m c\u1ee7a tr\u1ee5c s\u1ed1. N\u00f3 d\u00f9ng \u0111\u1ec3 ph\u00e2n c\u00e1ch hai t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean d\u01b0\u01a1ng v\u00e0 nguy\u00ean \u00e2m. B\u00ean c\u1ea1nh \u0111\u00f3, tr\u1ee5c s\u1ed1 nguy\u00ean c\u00f2n \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n theo chi\u1ec1u th\u1eb3ng \u0111\u1ee9ng. L\u00fac \u0111\u00f3 th\u00ec:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Chi\u1ec1u d\u01b0\u01a1ng c\u1ee7a m\u0169i t\u00ean s\u1ebd h\u01b0\u1edbng l\u00ean tr\u00ean.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">G\u1ed1c tr\u00ean tr\u1ee5c s\u1ed1 d\u1ecdc ch\u00ednh l\u00e0 s\u1ed1 0 \u1edf trung t\u00e2m c\u1ee7a tr\u1ee5c s\u1ed1.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110\u01a1n v\u1ecb d\u00f9ng \u0111\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u1ed9 d\u00e0i c\u1ee7a tr\u1ee5c s\u1ed1 ch\u00ednh l\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a \u0111o\u1ea1n th\u1eb3ng d\u00f9ng \u0111\u1ec3 n\u1ed1i t\u1eeb s\u1ed1 0 v\u1edbi s\u1ed1 1 (s\u1ed1 1 s\u1ebd n\u1eb1m tr\u00ean s\u1ed1 0).<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">S\u1ed1 \u0111\u1ed1i l\u00e0 g\u00ec?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">T\u1eeb vi\u1ec7c t\u00ecm hi\u1ec3u s\u1ed1 nguy\u00ean l\u00e0 g\u00ec \u1edf tr\u00ean th\u00ec ch\u00fang ta l\u1ea1i ph\u00e1t sinh th\u00eam m\u1ed9t kh\u00e1i ni\u1ec7m v\u1ec1 s\u1ed1 \u0111\u1ed1i. 2 s\u1ed1 \u0111\u01b0\u1ee3c coi l\u00e0 \u0111\u1ed1i v\u1edbi nhau khi n\u00f3 n\u1eb1m \u0111\u1ed1i x\u1ee9ng nhau qua s\u1ed1 0. N\u00f3 c\u00e1ch s\u1ed1 0 c\u00e1c kho\u1ea3ng ngang nhau. Sau \u0111\u00e2y l\u00e0 v\u00e0i t\u00ednh ch\u1ea5t c\u1ee7a s\u1ed1 \u0111\u1ed1i:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 \u0111\u1ed1i c\u1ee7a 1 s\u1ed1 thu\u1ed9c Z+ ch\u00ednh l\u00e0 1 s\u1ed1 thu\u1ed9c Z-.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 \u0111\u1ed1i c\u1ee7a 1 s\u1ed1 nguy\u00ean Z- l\u00e0 1 s\u1ed1 thu\u1ed9c Z+.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u00a0S\u1ed1 \u0111\u1ed1i c\u1ee7a s\u1ed1 0 l\u00e0 ch\u00ednh n\u00f3.<\/span><\/li>\n<\/ul>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-4.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-4-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-4-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-300965 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-4.jpg\" alt=\"so-nguyen-la-gi-4\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-4.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-4-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-4-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 vi\u1ebft \u0111\u01b0\u1ee3c s\u1ed1 \u0111\u1ed1i c\u1ee7a 1 s\u1ed1 thu\u1ed9c Z+ th\u00ec b\u1ea1n h\u00e3y \u0111\u1eb7t d\u1ea5u tr\u1eeb tr\u01b0\u1edbc con s\u1ed1 \u0111\u00f3. C\u00f2n n\u1ebfu mu\u1ed1n vi\u1ebft s\u1ed1 \u0111\u1ed1i c\u1ee7a 1 s\u1ed1 thu\u1ed9c Z- th\u00ec b\u1ea1n h\u00e3y b\u1ecf d\u1ea5u tr\u1eeb \u1edf tr\u01b0\u1edbc con s\u1ed1 \u0111\u00f3. Ch\u1eb3ng h\u1ea1n:<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">S\u1ed1 \u0111\u1ed1i c\u1ee7a s\u1ed1 1 l\u00e0 s\u1ed1 -1<\/span><\/li>\n<li><span style=\"font-weight: 400;\">S\u1ed1 \u0111\u1ed1i c\u1ee7a s\u1ed1 2 l\u00e0 s\u1ed1 -2<\/span><\/li>\n<li><span style=\"font-weight: 400;\">S\u1ed1 \u0111\u1ed1i c\u1ee7a s\u1ed1 3 l\u00e0 s\u1ed1 -3\u2026<\/span><\/li>\n<li><span style=\"font-weight: 400;\">S\u1ed1 \u0111\u1ed1i c\u1ee7a s\u1ed1 0 ch\u00ednh l\u00e0 s\u1ed1 0.\u00a0<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Khi \u0111\u00f3 th\u00ec ch\u00fang ta c\u00f3 th\u1ec3 nh\u1eadn \u0111\u1ecbnh l\u00e0 t\u1eadp s\u1ed1 N (s\u1ed1 t\u1ef1 nhi\u00ean) v\u00e0 t\u1eadp h\u1ee3p nh\u1eefng s\u1ed1 \u0111\u1ed1i c\u1ee7a s\u1ed1 t\u1ef1 nhi\u00ean khi k\u1ebft h\u1ee3p l\u1ea1i s\u1ebd t\u1ea1o ra t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 nguy\u00ean l\u00e0 Z.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">T\u00ednh ch\u1ea5t c\u1ee7a t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean l\u00e0 g\u00ec?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Hi\u1ec7n nay t\u1eadp h\u1ee3p Z g\u1ed3m nh\u1eefng t\u00ednh ch\u1ea5t nh\u01b0 sau:<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-5.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-5-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-5-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-300966 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-5.jpg\" alt=\"so-nguyen-la-gi-5\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-5.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-5-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-5-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">V\u00ec b\u1ea3n ch\u1ea5t c\u1ee7a t\u1eadp h\u1ee3p Z l\u00e0 kh\u00f4ng gi\u1edbi h\u1ea1n n\u00ean n\u00f3 s\u1ebd kh\u00f4ng xu\u1ea5t hi\u1ec7n s\u1ed1 nguy\u00ean \u00e2m n\u00e0o b\u00e9 nh\u1ea5t hay s\u1ed1 nguy\u00ean d\u01b0\u01a1ng n\u00e0o l\u1edbn nh\u1ea5t.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ch\u1ec9 xu\u1ea5t hi\u1ec7n s\u1ed1 nguy\u00ean \u00e2m c\u00f3 gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t l\u00e0 s\u1ed1 -1 v\u00e0 s\u1ed1 nguy\u00ean d\u01b0\u01a1ng c\u00f3 gi\u00e1 tr\u1ecb b\u00e9 nh\u1ea5t l\u00e0 s\u1ed1 1 (c\u1eadn 0).<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">C\u00e1c s\u1ed1 thu\u1ed9c t\u1eadp h\u1ee3p s\u1ed1 Z- lu\u00f4n lu\u00f4n b\u00e9 h\u01a1n 0 v\u00e0 c\u00e1c s\u1ed1 thu\u1ed9c t\u1eadp h\u1ee3p s\u1ed1 Z+.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u1ea5t c\u1ea3 nh\u1eefng s\u1ed1 thu\u1ed9c Z+ \u0111\u1ec1u c\u00f3 gi\u00e1 tr\u1ecb l\u1edbn h\u01a1n 0.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u1eadp h\u1ee3p Z g\u1ed3m r\u1ea5t nhi\u1ec1u nh\u1eefng t\u1eadp h\u1ee3p con h\u1eefu h\u1ea1n. Khi xem x\u00e9t 1 t\u1eadp h\u1ee3p con c\u1ee7a t\u1eadp h\u1ee3p Z ng\u1eabu nhi\u00ean th\u00ec ch\u00fang ta lu\u00f4n t\u00ecm th\u1ea5y nh\u1eefng ph\u1ea7n t\u1eed l\u1edbn nh\u1ea5t v\u00e0 b\u00e9 nh\u1ea5t.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Kh\u00e1c v\u1edbi nh\u1eefng t\u1eadp h\u1ee3p nh\u01b0 s\u1ed1 th\u1ef1c, s\u1ed1 h\u1eefu t\u1ec9 th\u00ec gi\u1eefa hai s\u1ed1 nguy\u00ean k\u1ec1 nhau kh\u00f4ng t\u1ed3n t\u1ea1i s\u1ed1 nguy\u00ean n\u1eb1m \u1edf gi\u1eefa.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Ngo\u00e0i vi\u1ec7c t\u00ecm hi\u1ec3u s\u1ed1 nguy\u00ean l\u00e0 g\u00ec th\u00ec b\u1ea1n n\u00ean t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 s\u1ed1 th\u1ef1c \u0111\u1ec3 so s\u00e1nh hai t\u1eadp h\u1ee3p n\u00e0y. S\u1ed1 th\u1ef1c l\u00e0 1 t\u1eadp h\u1ee3p ch\u1ee9a nh\u1eefng s\u1ed1 \u00e2m, s\u1ed1 d\u01b0\u01a1ng, s\u1ed1 v\u00f4 t\u1ec9, s\u1ed1 h\u1eefu t\u1ec9 v\u00e0 c\u1ea3 s\u1ed1 0. Kh\u00e1i ni\u1ec7m n\u00e0y c\u01a1 b\u1ea3n kh\u00e1c v\u1edbi s\u1ed1 nguy\u00ean b\u00ecnh th\u01b0\u1eddng. S\u1ed1 th\u1ef1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng nh\u1eefng k\u00fd hi\u1ec7u nh\u01b0 d\u1ea5u ch\u1ea5m, v\u00ed d\u1ee5 nh\u01b0 -0.5, 3.14, 2.713,&#8230;<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-6.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-6-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-6-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-300967 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-6.jpg\" alt=\"so-nguyen-la-gi-6\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-6.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-6-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-6-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">Khi bi\u1ebft \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a v\u1ec1 s\u1ed1 th\u1ef1c th\u00ec m\u1ecdi ng\u01b0\u1eddi s\u1ebd bi\u1ebft \u0111\u01b0\u1ee3c c\u00e1ch \u0111\u1ec3 ph\u00e2n bi\u1ec7t n\u00f3 v\u1edbi t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean (ch\u1ec9 ch\u1ee9a s\u1ed1 nguy\u00ean \u00e2m, nguy\u00ean d\u01b0\u01a1ng v\u00e0 0). \u0110\u1ed3ng th\u1eddi b\u1ea1n c\u0169ng bi\u1ebft c\u00e1ch \u0111\u1ec3 ph\u00e2n bi\u1ec7t v\u1edbi s\u1ed1 h\u1eefu t\u1ec9 (ch\u1ee9a nh\u1eefng ph\u00e2n s\u1ed1, t\u1eed s\u1ed1, m\u1eabu s\u1ed1 thu\u1ed9c t\u1eadp h\u1ee3p s\u1ed1 nguy\u00ean). Nh\u01b0 v\u1eady, ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y s\u1ed1 th\u1ef1c l\u00e0 kh\u00e1i ni\u1ec7m n\u1ec1n t\u1ea3ng trong to\u00e1n h\u1ecdc v\u00e0 \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111a d\u1ea1ng l\u0129nh v\u1ef1c.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Tr\u1ee5c s\u1ed1 th\u1ef1c l\u00e0 g\u00ec?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 tr\u1ee5c s\u1ed1 \u0111\u01b0\u1ee3c v\u1ebd d\u01b0\u1edbi d\u1ea1ng \u0111\u01b0\u1eddng th\u1eb3ng \u0111\u1ec3 th\u1ec3 hi\u1ec7n t\u1ea5t c\u1ea3 nh\u1eefng s\u1ed1 th\u1ef1c trong t\u1eadp h\u1ee3p. Tr\u1ee5c n\u00e0y th\u01b0\u1eddng th\u1ec3 hi\u1ec7n nh\u01b0 1 \u0111\u01b0\u1eddng th\u1eb3ng \u0111\u1ee9ng. T\u1eebng \u0111i\u1ec3m tr\u00ean tr\u1ee5c s\u1ed1 s\u1ebd \u1ee9ng v\u1edbi 1 s\u1ed1 th\u1ef1c. N\u01a1i kh\u1edfi \u0111\u1ea7u c\u1ee7a tr\u1ee5c s\u1ebd quy \u0111\u1ecbnh v\u1edbi gi\u00e1 tr\u1ecb l\u00e0 0. Nh\u1eefng s\u1ed1 d\u01b0\u01a1ng \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf b\u00ean ph\u1ea3i c\u1ee7a s\u1ed1 0. C\u00f2n nh\u1eefng s\u1ed1 \u00e2m s\u1ebd \u0111\u1eb7t \u1edf b\u00ean tr\u00e1i s\u1ed1 0.<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-7.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-7-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-7-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-300968 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-7.jpg\" alt=\"so-nguyen-la-gi-7\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-7.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-7-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-7-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<p><span style=\"font-weight: 400;\">T\u1eebng s\u1ed1 th\u1ef1c s\u1edf h\u1eefu 1 v\u1ecb tr\u00ed \u0111\u1ed9c nh\u1ea5t trong tr\u1ee5c s\u1ed1. Vi\u1ec7c n\u00e0y cho ph\u00e9p m\u1ecdi ng\u01b0\u1eddi th\u1ea5y \u0111\u01b0\u1ee3c s\u1ef1 li\u00ean h\u1ec7 trong kh\u00f4ng gian c\u1ee7a nh\u1eefng s\u1ed1 th\u1ef1c. Tr\u1ee5c s\u1ed1 bi\u1ec3u di\u1ec5n t\u1eadp h\u1ee3p s\u1ed1 th\u1ef1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong \u0111a d\u1ea1ng l\u0129nh v\u1ef1c. Ch\u00fang ta th\u1ea5y \u1ee9ng d\u1ee5ng nhi\u1ec1u nh\u1ea5t l\u00e0 trong khoa h\u1ecdc, to\u00e1n h\u1ecdc. Ngo\u00e0i ra, s\u1ed1 th\u1ef1c c\u00f2n l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 ph\u00e1t tri\u1ec3n ra nhi\u1ec1u \u0111\u1ecbnh ngh\u0129a to\u00e1n h\u1ecdc h\u1eefu \u00edch nh\u01b0 ph\u00e2n s\u1ed1, \u0111\u1ea1i s\u1ed1, h\u00e0m s\u1ed1,&#8230;<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">C\u00f3 m\u1ea5y d\u1ea1ng s\u1ed1 th\u1ef1c?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Khi \u0111\u00e3 t\u00ecm hi\u1ec3u s\u1ed1 nguy\u00ean l\u00e0 g\u00ec \u1edf tr\u00ean th\u00ec b\u1ea1n th\u1ea5y s\u1ed1 th\u1ef1c c\u0169ng \u0111\u01b0\u1ee3c chia ra l\u00e0m nhi\u1ec1u d\u1ea1ng v\u00e0 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n tr\u00ean tr\u1ee5c s\u1ed1. T\u1eadp h\u1ee3p s\u1ed1 th\u1ef1c hi\u1ec7n nay g\u1ed3m nh\u1eefng d\u1ea1ng nh\u01b0 sau:\u00a0<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-8.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-8-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-8-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-300969 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-8.jpg\" alt=\"so-nguyen-la-gi-8\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-8.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-8-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-8-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 nguy\u00ean: S\u1ed1 nguy\u00ean \u00e2m, s\u1ed1 nguy\u00ean d\u01b0\u01a1ng, 0.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 th\u1eadp ph\u00e2n: S\u1ed1 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n v\u1edbi 1 ho\u1eb7c nhi\u1ec1u s\u1ed1 ngay sau d\u1ea5u ch\u1ea5m d\u1ea1ng th\u1eadp ph\u00e2n hay nh\u1eefng s\u1ed1 d\u1ea1ng th\u1eadp ph\u00e2n c\u00f3 kho\u1ea3ng c\u00e1ch: 3.14, -1.784, 0.5,&#8230;<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 v\u00f4 h\u1ea1n d\u1ea1ng th\u1eadp ph\u00e2n: \u0110\u00e2y l\u00e0 nh\u1eefng s\u1ed1 m\u00e0 kh\u00f4ng c\u00f3 ch\u1ea5m d\u1eebng v\u00e0 c\u0169ng kh\u00f4ng c\u00f3 s\u1ed1 n\u00e0o \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i ngay trong d\u00e3y th\u1eadp ph\u00e2n. V\u00ed d\u1ee5 nh\u01b0 s\u1ed1 Pi = 3.1415,&#8230; ho\u1eb7c s\u1ed1 e = 2.718\u2026<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 v\u00f4 t\u1ec9 v\u00e0 s\u1ed1 h\u1eefu t\u1ec9: G\u1ed3m nh\u1eefng s\u1ed1 v\u00f4 t\u1ec9, h\u1eefu t\u1ec9 nh\u01b0 s\u1ed1 e = 2.718,&#8230; hay s\u1ed1 c\u0103n b\u1eadc 2 = 1.414\u2026<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">S\u1ed1 th\u1ef1c c\u00f3 nh\u1eefng t\u00ednh ch\u1ea5t n\u00e0o?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Kh\u00f4ng ch\u1ec9 n\u1eafm r\u00f5 s\u1ed1 nguy\u00ean l\u00e0 g\u00ec, vi\u1ec7c n\u1eafm r\u00f5 t\u00ednh ch\u1ea5t c\u1ee7a s\u1ed1 th\u1ef1c c\u0169ng gi\u00fap b\u1ea1n bi\u1ebft c\u00e1ch gi\u1ea3i nh\u1eefng b\u00e0i to\u00e1n nhanh ch\u00f3ng:<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">D\u00e3y s\u1ed1 R c\u00f3 t\u00ednh ch\u1ea5t li\u00ean t\u1ee5c<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">M\u1ecdi \u0111i\u1ec3m n\u1eb1m tr\u00ean tr\u1ee5c s\u1ed1 R \u0111\u1ec1u \u0111\u01b0\u1ee3c bao ph\u1ee7 b\u1edfi d\u00e3y R. Ngh\u0129a l\u00e0 tr\u1ee5c n\u00e0y cho ph\u00e9p m\u1ecdi ng\u01b0\u1eddi theo s\u00e1t s\u1ef1 li\u00ean t\u1ee5c c\u1ee7a d\u00e3y s\u1ed1 R. Quy lu\u1eadt c\u1ee7a d\u00e3y s\u1ed1 R \u0111\u01b0\u1ee3c v\u1eadn d\u1ee5ng nhi\u1ec1u trong to\u00e1n h\u1ecdc v\u00e0 nh\u1eefng v\u1ea5n \u0111\u1ec1 trong th\u1ef1c t\u1ebf.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">T\u1eadp h\u1ee3p s\u1ed1 R c\u00f3 t\u00ednh kh\u1ea3 \u0111o\u00e1n<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Hi\u1ec7n nay nguy\u00ean t\u1eafc d\u00f9ng s\u1ed1 th\u1ef1c s\u1ebd \u0111\u01b0\u1ee3c x\u1ebfp theo t\u1eebng th\u1ee9 t\u1ef1. T\u1ee9c l\u00e0 n\u00f3 \u0111\u01b0\u1ee3c so s\u00e1nh, x\u1ebfp h\u1ea1ng t\u00f9y theo y\u00eau c\u1ea7u c\u1ee7a c\u00f4ng vi\u1ec7c hay h\u1ecdc t\u1eadp. \u0110\u1ec3 thi\u1ebft l\u1eadp nh\u1eefng h\u1ec7 th\u1ed1ng d\u00f9ng \u0111\u1ec3 \u0111o l\u01b0\u1eddng, chu\u1ea9n h\u00f3a nh\u1eefng \u0111\u01a1n v\u1ecb s\u1ed1 th\u00ec kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebfu t\u00ednh ch\u1ea5t quan tr\u1ecdng n\u00e0y.<\/span><\/p>\n<p><picture><source srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-9.jpg.webp 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-9-300x169.jpg.webp 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/webp-express\/webp-images\/uploads\/2023\/12\/so-nguyen-la-gi-9-768x432.jpg.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" type=\"image\/webp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-300970 aligncenter webpexpress-processed\" src=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-9.jpg\" alt=\"so-nguyen-la-gi-9\" width=\"800\" height=\"450\" srcset=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-9.jpg 800w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-9-300x169.jpg 300w, https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-9-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\"><\/picture><\/p>\n<h3><span style=\"font-weight: 400;\">T\u00ednh ch\u1ea5t ph\u00e9p nh\u00e2n v\u00e0 ph\u00e9p c\u1ed9ng<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">S\u1ed1 th\u1ef1c theo quy t\u1eafc nh\u00e2n v\u00e0 theo quy t\u1eafc c\u1ed9ng c\u00f3 k\u1ebft qu\u1ea3 c\u1ee7a 2 d\u1ea1ng s\u1ed1 R kh\u00e1c nhau. Hi\u1ec3u d\u1ec5 d\u00e0ng h\u01a1n th\u00ec t\u00ednh ch\u1ea5t n\u00e0y c\u00f3 ngh\u0129a l\u00e0 v\u1edbi ph\u00e9p nh\u00e2n hay ph\u00e9p c\u1ed9ng \u00e1p d\u1ee5ng cho nh\u1eefng s\u1ed1 th\u1ef1c th\u00ec n\u00f3 s\u1ebd t\u1ea1o ra c\u00e1c h\u1ec7 s\u1ed1.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">T\u00ednh ch\u1ea5t l\u0169y th\u1eeba v\u00e0 ph\u00e9p chia<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Khi d\u00f9ng s\u1ed1 th\u1ef1c th\u00ec m\u1ecdi ng\u01b0\u1eddi ph\u1ea3i ch\u00fa \u00fd t\u00ednh ch\u1ea5t ph\u00e9p chia (lo\u1ea1i tr\u1eeb tr\u01b0\u1eddng h\u1ee3p chia cho s\u1ed1 0). B\u00ean c\u1ea1nh \u0111\u00f3, t\u00ednh ch\u1ea5t l\u0169y th\u1eeba c\u0169ng g\u1ed3m quy t\u1eafc nh\u00e2n v\u00e0 c\u1ed9ng n\u00ean m\u1ecdi ng\u01b0\u1eddi c\u1ea7n l\u01b0u \u00fd.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">C\u00e1ch ph\u00e2n bi\u1ec7t s\u1ed1 th\u1ef1c v\u00e0 s\u1ed1 nguy\u00ean l\u00e0 g\u00ec?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Sau \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh s\u1ed1 nguy\u00ean v\u00e0 s\u1ed1 th\u1ef1c \u0111\u1ec3 b\u1ea1n hi\u1ec3u hai t\u1eadp h\u1ee3p n\u00e0y:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">S\u1ed1 nguy\u00ean<\/span><\/td>\n<td><span style=\"font-weight: 400;\">S\u1ed1 th\u1ef1c<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Kh\u00e1i ni\u1ec7m<\/span><\/td>\n<td><span style=\"font-weight: 400;\">S\u1ed1 nguy\u00ean l\u00e0 t\u1ed5 h\u1ee3p nh\u1eefng s\u1ed1 t\u1ef1 nhi\u00ean (nguy\u00ean d\u01b0\u01a1ng), s\u1ed1 0 c\u00f9ng nh\u1eefng s\u1ed1 \u0111\u1ed1i c\u1ee7a n\u00f3 (nguy\u00ean \u00e2m).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">K\u00fd hi\u1ec7u l\u00e0 Z.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">L\u00e0 c\u00e1c s\u1ed1 kh\u00f4ng th\u1ec3 \u0111\u1ebfm v\u00e0 g\u1ed3m t\u1eadp h\u1ee3p s\u1ed1 v\u00f4 t\u1ec9, s\u1ed1 nguy\u00ean, s\u1ed1 h\u1eefu t\u1ec9.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">K\u00fd hi\u1ec7u l\u00e0 R.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">T\u00ednh ch\u1ea5t<\/span><\/td>\n<td><span style=\"font-weight: 400;\">T\u1eadp h\u1ee3p nh\u1eefng s\u1ed1 nguy\u00ean v\u00f4 h\u1ea1n, c\u00f3 th\u1ec3 \u0111\u1ebfm \u0111\u01b0\u1ee3c.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">T\u1eadp h\u1ee3p nh\u1eefng s\u1ed1 th\u1ef1c v\u00f4 h\u1ea1n, kh\u00f4ng th\u1ec3 \u0111\u1ebfm \u0111\u01b0\u1ee3c.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">\u0110\u1eb7c \u0111i\u1ec3m<\/span><\/td>\n<td>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong t\u1eadp Z kh\u00f4ng t\u1ed3n t\u1ea1i s\u1ed1 nguy\u00ean \u00e2m b\u00e9 nh\u1ea5t hay s\u1ed1 nguy\u00ean d\u01b0\u01a1ng cao nh\u1ea5t.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong t\u1eadp Z c\u00f3 s\u1ed1 nguy\u00ean d\u01b0\u01a1ng b\u00e9 nh\u1ea5t l\u00e0 s\u1ed1 1 v\u00e0 s\u1ed1 nguy\u00ean \u00e2m cao nh\u1ea5t l\u00e0 s\u1ed1 -1.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong t\u1eadp h\u1ee3p con h\u1eefu h\u1ea1n thu\u1ed9c Z th\u00ec lu\u00f4n t\u1ed3n t\u1ea1i ph\u1ea7n t\u1eed gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t v\u00e0 b\u00e9 nh\u1ea5t.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Gi\u1eefa hai s\u1ed1 nguy\u00ean k\u1ec1 nhau kh\u00f4ng c\u00f3 s\u1ed1 nguy\u00ean n\u00e0o \u1edf gi\u1eefa.<\/span><\/li>\n<\/ul>\n<\/td>\n<td>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 R # 0 ng\u1eabu nhi\u00ean l\u00e0 s\u1ed1 \u00e2m ho\u1eb7c s\u1ed1 d\u01b0\u01a1ng.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">T\u00edch v\u00e0 t\u1ed5ng c\u1ee7a hai s\u1ed1 R kh\u00f4ng \u00e2m c\u00f3 k\u1ebft qu\u1ea3 l\u00e0 s\u1ed1 R kh\u00f4ng \u00e2m.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Trong t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 \u0111\u1ebfm \u0111\u01b0\u1ee3c ng\u1eabu nhi\u00ean th\u00ec s\u1ed1 th\u1ef1c lu\u00f4n nhi\u1ec1u h\u01a1n.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">C\u00f3 1 h\u1ec7 th\u1ed1ng t\u1eadp con v\u00f4 h\u1ea1n g\u1ed3m s\u1ed1 t\u00ednh \u0111\u01b0\u1ee3c c\u1ee7a c\u00e1c s\u1ed1 R l\u00e0 s\u1ed1 nguy\u00ean, s\u1ed1 h\u1eefu t\u1ec9, s\u1ed1 t\u00ednh \u0111\u01b0\u1ee3c, \u0111\u1ea1i s\u1ed1. Nh\u1eefng s\u1ed1 n\u00e0y c\u00f3 ph\u1ea7n b\u00f9 l\u00e0 s\u1ed1 v\u00f4 t\u1ec9, s\u1ed1 si\u00eau vi\u1ec7t, s\u1ed1 kh\u00f4ng \u0111\u1ebfm \u0111\u01b0\u1ee3c, \u0111\u00e2y \u0111\u1ec1u l\u00e0 nh\u1eefng t\u1eadp s\u1ed1 v\u00f4 h\u1ea1n v\u00e0 kh\u00f4ng t\u00ednh \u0111\u01b0\u1ee3c.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">S\u1ed1 th\u1ef1c d\u00f9ng \u0111\u1ec3 hi\u1ec3n th\u1ecb k\u1ebft qu\u1ea3 khi \u0111o l\u01b0\u1eddng nh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng m\u1ed9t c\u00e1ch li\u00ean t\u1ee5c.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Nh\u01b0 v\u1eady m\u1ecdi ng\u01b0\u1eddi \u0111\u00e3 bi\u1ebft \u0111\u01b0\u1ee3c s\u1ed1 nguy\u00ean l\u00e0 g\u00ec v\u00e0 s\u1ed1 th\u1ef1c l\u00e0 g\u00ec qua b\u00e0i vi\u1ebft tr\u00ean. B\u00ean c\u1ea1nh \u0111\u00f3, m\u1ecdi ng\u01b0\u1eddi \u0111\u00e3 bi\u1ebft c\u00e1ch ph\u00e2n bi\u1ec7t s\u1ed1 nguy\u00ean v\u1edbi s\u1ed1 th\u1ef1c \u0111\u1ec3 kh\u00f4ng nh\u1ea7m l\u1eabn gi\u1eefa hai t\u1eadp h\u1ee3p s\u1ed1 n\u00e0y. \u0110\u00e2y l\u00e0 ki\u1ebfn th\u1ee9c quan tr\u1ecdng m\u00e0 c\u00e1c b\u1ea1n h\u1ecdc sinh nh\u1ea5t \u0111\u1ecbnh ph\u1ea3i n\u1eafm n\u1ebfu mu\u1ed1n h\u1ecdc to\u00e1n t\u1ed1t h\u01a1n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tham kh\u1ea3o b\u00e0i vi\u1ebft li\u00ean quan:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><strong><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/the-tich-khoi-chop\/\">C\u00f4ng th\u1ee9c t\u00ednh nhanh th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p \u2013 T\u00ednh to\u00e1n d\u1ec5 d\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3<\/a><\/strong><\/li>\n<li style=\"font-weight: 400;\"><strong><a href=\"https:\/\/hoanghamobile.com\/tin-tuc\/cach-tinh-dien-tich-tam-giac-vuong\/\">C\u00f4ng th\u1ee9c c\u00e1ch t\u00ednh di\u1ec7n t\u00edch v\u00e0 \u0111\u01b0\u1eddng cao tam gi\u00e1c vu\u00f4ng<\/a><\/strong><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1i ni\u1ec7m s\u1ed1 nguy\u00ean l\u00e0 g\u00ec \u0111ang \u0111\u01b0\u1ee3c chia s\u1ebb trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc t\u1ea1i Vi\u1ec7t Nam. \u0110\u00e2y l\u00e0 kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n m\u00e0 b\u1ea1n h\u1ecdc sinh n\u00e0o c\u0169ng ph\u1ea3i t\u00ecm hi\u1ec3u. T\u1eeb \u0111\u00f3 b\u1ea1n s\u1ebd l\u00e0m nh\u1eefng b\u00e0i t\u1eadp to\u00e1n nhanh ch\u00f3ng h\u01a1n. N\u1ebfu b\u1ea1n \u0111\u00e3 h\u1ecdc qua ki\u1ebfn th\u1ee9c n\u00e0y ho\u1eb7c ch\u01b0a [&hellip;]<\/p>\n","protected":false},"author":102,"featured_media":300961,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3910,30453],"tags":[],"class_list":["post-300959","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kham-pha","category-kien-thuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?<\/title>\n<meta name=\"description\" content=\"C\u00e1c b\u1ea1n h\u1ecdc sinh c\u1ea7n ph\u1ea3i t\u00ecm hi\u1ec3u k\u1ef9 s\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 hai ki\u1ebfn th\u1ee9c quan tr\u1ecdng trong to\u00e1n h\u1ecdc m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?\" \/>\n<meta property=\"og:description\" content=\"C\u00e1c b\u1ea1n h\u1ecdc sinh c\u1ea7n ph\u1ea3i t\u00ecm hi\u1ec3u k\u1ef9 s\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 hai ki\u1ebfn th\u1ee9c quan tr\u1ecdng trong to\u00e1n h\u1ecdc m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/\" \/>\n<meta property=\"og:site_name\" content=\"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - HoangHaMobile\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/hoanghamobilecom\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/hoanghamobilecom\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-29T12:53:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Nguy\u1ec5n Xu\u00e2n Thi\u00ean\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nguy\u1ec5n Xu\u00e2n Thi\u00ean\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"14 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/\"},\"author\":{\"name\":\"Nguy\u1ec5n Xu\u00e2n Thi\u00ean\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/person\/0790996b964a39ecaeee5b5cabc821b5\"},\"headline\":\"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?\",\"datePublished\":\"2023-12-29T12:53:33+00:00\",\"dateModified\":\"2023-12-29T12:53:33+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/\"},\"wordCount\":3065,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#organization\"},\"image\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg\",\"articleSection\":[\"Kh\u00e1m Ph\u00e1\",\"Ki\u1ebfn Th\u1ee9c\"],\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#respond\"]}],\"copyrightYear\":\"2023\",\"copyrightHolder\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/\",\"url\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/\",\"name\":\"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?\",\"isPartOf\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg\",\"datePublished\":\"2023-12-29T12:53:33+00:00\",\"dateModified\":\"2023-12-29T12:53:33+00:00\",\"description\":\"C\u00e1c b\u1ea1n h\u1ecdc sinh c\u1ea7n ph\u1ea3i t\u00ecm hi\u1ec3u k\u1ef9 s\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 hai ki\u1ebfn th\u1ee9c quan tr\u1ecdng trong to\u00e1n h\u1ecdc m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm.\",\"breadcrumb\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#primaryimage\",\"url\":\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg\",\"contentUrl\":\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg\",\"width\":1200,\"height\":628,\"caption\":\"so-nguyen-la-gi-11\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Trang ch\u1ee7\",\"item\":\"https:\/\/hoanghamobile.com\/tin-tuc\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Kh\u00e1m Ph\u00e1\",\"item\":\"https:\/\/hoanghamobile.com\/tin-tuc\/category\/kham-pha\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#website\",\"url\":\"https:\/\/hoanghamobile.com\/tin-tuc\/\",\"name\":\"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - HoangHaMobile\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/hoanghamobile.com\/tin-tuc\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#organization\",\"name\":\"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - HoangHaMobile\",\"url\":\"https:\/\/hoanghamobile.com\/tin-tuc\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2021\/12\/logo-text.png\",\"contentUrl\":\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2021\/12\/logo-text.png\",\"width\":256,\"height\":37,\"caption\":\"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - HoangHaMobile\"},\"image\":{\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/hoanghamobilecom\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/person\/0790996b964a39ecaeee5b5cabc821b5\",\"name\":\"Nguy\u1ec5n Xu\u00e2n Thi\u00ean\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/litespeed\/avatar\/af6ba686f8795ce266c4a6aa2a93aaeb.jpg?ver=1774865095\",\"contentUrl\":\"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/litespeed\/avatar\/af6ba686f8795ce266c4a6aa2a93aaeb.jpg?ver=1774865095\",\"caption\":\"Nguy\u1ec5n Xu\u00e2n Thi\u00ean\"},\"description\":\"Ch\u00e0o c\u00e1c b\u1ea1n, m\u00ecnh l\u00e0 Xu\u00e2n Thi\u00ean. Trong k\u1ef7 nguy\u00ean s\u1ed1 thay \u0111\u1ed5i t\u1eebng gi\u1edd, m\u00ecnh \u1edf \u0111\u00e2y \u0111\u1ec3 c\u00f9ng b\u1ea1n c\u1eadp nh\u1eadt v\u00e0 ph\u00e2n t\u00edch nh\u1eefng chuy\u1ec3n \u0111\u1ed9ng m\u1edbi nh\u1ea5t c\u1ee7a th\u1ebf gi\u1edbi c\u00f4ng ngh\u1ec7. B\u1eb1ng s\u1ef1 am hi\u1ec3u v\u1ec1 h\u1ec7 sinh th\u00e1i c\u00e1c s\u1ea3n ph\u1ea9m c\u00f4ng ngh\u1ec7 hi\u1ec7n nay, m\u00ecnh cam k\u1ebft mang \u0111\u1ebfn cho b\u1ea1n nh\u1eefng g\u00f3c nh\u00ecn tr\u1ef1c quan, h\u1ed7 tr\u1ee3 b\u1ea1n l\u00e0m ch\u1ee7 c\u00f4ng ngh\u1ec7 m\u1ed9t c\u00e1ch th\u00f4ng minh nh\u1ea5t.\",\"sameAs\":[\"https:\/\/www.facebook.com\/hoanghamobilecom\"],\"url\":\"https:\/\/hoanghamobile.com\/tin-tuc\/author\/nguyen-xuan-thien\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?","description":"C\u00e1c b\u1ea1n h\u1ecdc sinh c\u1ea7n ph\u1ea3i t\u00ecm hi\u1ec3u k\u1ef9 s\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 hai ki\u1ebfn th\u1ee9c quan tr\u1ecdng trong to\u00e1n h\u1ecdc m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/","og_locale":"vi_VN","og_type":"article","og_title":"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?","og_description":"C\u00e1c b\u1ea1n h\u1ecdc sinh c\u1ea7n ph\u1ea3i t\u00ecm hi\u1ec3u k\u1ef9 s\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 hai ki\u1ebfn th\u1ee9c quan tr\u1ecdng trong to\u00e1n h\u1ecdc m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm.","og_url":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/","og_site_name":"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - HoangHaMobile","article_publisher":"https:\/\/www.facebook.com\/hoanghamobilecom","article_author":"https:\/\/www.facebook.com\/hoanghamobilecom","article_published_time":"2023-12-29T12:53:33+00:00","og_image":[{"width":1200,"height":628,"url":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg","type":"image\/jpeg"}],"author":"Nguy\u1ec5n Xu\u00e2n Thi\u00ean","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"Nguy\u1ec5n Xu\u00e2n Thi\u00ean","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"14 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#article","isPartOf":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/"},"author":{"name":"Nguy\u1ec5n Xu\u00e2n Thi\u00ean","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/person\/0790996b964a39ecaeee5b5cabc821b5"},"headline":"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?","datePublished":"2023-12-29T12:53:33+00:00","dateModified":"2023-12-29T12:53:33+00:00","mainEntityOfPage":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/"},"wordCount":3065,"commentCount":0,"publisher":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#organization"},"image":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#primaryimage"},"thumbnailUrl":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg","articleSection":["Kh\u00e1m Ph\u00e1","Ki\u1ebfn Th\u1ee9c"],"inLanguage":"vi","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#respond"]}],"copyrightYear":"2023","copyrightHolder":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#organization"}},{"@type":"WebPage","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/","url":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/","name":"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?","isPartOf":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#website"},"primaryImageOfPage":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#primaryimage"},"image":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#primaryimage"},"thumbnailUrl":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg","datePublished":"2023-12-29T12:53:33+00:00","dateModified":"2023-12-29T12:53:33+00:00","description":"C\u00e1c b\u1ea1n h\u1ecdc sinh c\u1ea7n ph\u1ea3i t\u00ecm hi\u1ec3u k\u1ef9 s\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec? \u0110\u00e2y l\u00e0 hai ki\u1ebfn th\u1ee9c quan tr\u1ecdng trong to\u00e1n h\u1ecdc m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm.","breadcrumb":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/"]}]},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#primaryimage","url":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg","contentUrl":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2023\/12\/so-nguyen-la-gi-11.jpg","width":1200,"height":628,"caption":"so-nguyen-la-gi-11"},{"@type":"BreadcrumbList","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/so-nguyen-la-gi\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Trang ch\u1ee7","item":"https:\/\/hoanghamobile.com\/tin-tuc\/"},{"@type":"ListItem","position":2,"name":"Kh\u00e1m Ph\u00e1","item":"https:\/\/hoanghamobile.com\/tin-tuc\/category\/kham-pha\/"},{"@type":"ListItem","position":3,"name":"S\u1ed1 nguy\u00ean l\u00e0 g\u00ec? S\u1ed1 th\u1ef1c l\u00e0 g\u00ec?"}]},{"@type":"WebSite","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#website","url":"https:\/\/hoanghamobile.com\/tin-tuc\/","name":"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - HoangHaMobile","description":"","publisher":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/hoanghamobile.com\/tin-tuc\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":"Organization","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#organization","name":"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - HoangHaMobile","url":"https:\/\/hoanghamobile.com\/tin-tuc\/","logo":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/logo\/image\/","url":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2021\/12\/logo-text.png","contentUrl":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/uploads\/2021\/12\/logo-text.png","width":256,"height":37,"caption":"Tin t\u1ee9c c\u00f4ng ngh\u1ec7 - HoangHaMobile"},"image":{"@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/hoanghamobilecom"]},{"@type":"Person","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/person\/0790996b964a39ecaeee5b5cabc821b5","name":"Nguy\u1ec5n Xu\u00e2n Thi\u00ean","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/hoanghamobile.com\/tin-tuc\/#\/schema\/person\/image\/","url":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/litespeed\/avatar\/af6ba686f8795ce266c4a6aa2a93aaeb.jpg?ver=1774865095","contentUrl":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-content\/litespeed\/avatar\/af6ba686f8795ce266c4a6aa2a93aaeb.jpg?ver=1774865095","caption":"Nguy\u1ec5n Xu\u00e2n Thi\u00ean"},"description":"Ch\u00e0o c\u00e1c b\u1ea1n, m\u00ecnh l\u00e0 Xu\u00e2n Thi\u00ean. Trong k\u1ef7 nguy\u00ean s\u1ed1 thay \u0111\u1ed5i t\u1eebng gi\u1edd, m\u00ecnh \u1edf \u0111\u00e2y \u0111\u1ec3 c\u00f9ng b\u1ea1n c\u1eadp nh\u1eadt v\u00e0 ph\u00e2n t\u00edch nh\u1eefng chuy\u1ec3n \u0111\u1ed9ng m\u1edbi nh\u1ea5t c\u1ee7a th\u1ebf gi\u1edbi c\u00f4ng ngh\u1ec7. B\u1eb1ng s\u1ef1 am hi\u1ec3u v\u1ec1 h\u1ec7 sinh th\u00e1i c\u00e1c s\u1ea3n ph\u1ea9m c\u00f4ng ngh\u1ec7 hi\u1ec7n nay, m\u00ecnh cam k\u1ebft mang \u0111\u1ebfn cho b\u1ea1n nh\u1eefng g\u00f3c nh\u00ecn tr\u1ef1c quan, h\u1ed7 tr\u1ee3 b\u1ea1n l\u00e0m ch\u1ee7 c\u00f4ng ngh\u1ec7 m\u1ed9t c\u00e1ch th\u00f4ng minh nh\u1ea5t.","sameAs":["https:\/\/www.facebook.com\/hoanghamobilecom"],"url":"https:\/\/hoanghamobile.com\/tin-tuc\/author\/nguyen-xuan-thien\/"}]}},"_links":{"self":[{"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/posts\/300959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/users\/102"}],"replies":[{"embeddable":true,"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/comments?post=300959"}],"version-history":[{"count":0,"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/posts\/300959\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/media\/300961"}],"wp:attachment":[{"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/media?parent=300959"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/categories?post=300959"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hoanghamobile.com\/tin-tuc\/wp-json\/wp\/v2\/tags?post=300959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}