I. V\u1ec1 t\u00e1c gi\u1ea3, t\u00e1c ph\u1ea9m<\/h2>\n

– H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng ng\u01b0\u1eddi l\u00e0ng Qu\u1ef3nh \u0110\u00f4i, huy\u1ec7n Qu\u1ef3nh L\u01b0u, t\u1ec9nh Ngh\u1ec7 An nh\u01b0ng ch\u1ee7 y\u1ebfu s\u1ed1ng \u1edf kinh th\u00e0nh Th\u0103ng Long. B\u00e0 \u0111i nhi\u1ec1u n\u01a1i, th\u00e2n thi\u1ebft v\u1edbi nhi\u1ec1u danh s\u0129 nh\u01b0 Nguy\u1ec5n Du. Cu\u1ed9c \u0111\u1eddi, t\u00ecnh duy\u00ean c\u1ee7a H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng nhi\u1ec1u \u00e9o le, ngang tr\u00e1i.<\/p>\n

– H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng l\u00e0 nh\u00e0 th\u01a1 n\u1ed5i ti\u1ebfng vi\u1ebft v\u1ec1 ph\u1ee5 n\u1eef, vi\u1ebft v\u1ec1 \u0111\u1ec1 t\u00e0i tr\u00e0o ph\u00fang \u0111\u1eadm ch\u1ea5t tr\u1eef t\u00ecnh, \u0111\u1eadm ch\u1ea5t v\u0103n h\u1ecdc d\u00e2n gian. N\u1ed5i b\u1eadt trong s\u00e1ng t\u00e1c th\u01a1 N\u00f4m H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng l\u00e0 ti\u1ebfng n\u00f3i th\u01b0\u01a1ng c\u1ea3m v\u1edbi ng\u01b0\u1eddi ph\u1ee5 n\u1eef, l\u00e0 s\u1ef1 kh\u1eb3ng \u0111\u1ecbnh, \u0111\u1ec1 cao v\u1ebb \u0111\u1eb9p, kh\u00e1t v\u1ecdng c\u1ee7a h\u1ecd.<\/p>\n

– T\u1ef1 t\u00ecnh (b\u00e0i II) n\u1eb1m trong ch\u00f9m th\u01a1\u00a0T\u1ef1 t\u00ecnh<\/i>\u00a0g\u1ed3m ba b\u00e0i c\u1ee7a H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng.<\/p>\n

II. H\u01b0\u1edbng d\u1eabn so\u1ea1n b\u00e0i<\/h2>\n

C\u00e2u 1 (trang 19 sgk Ng\u1eef V\u0103n 11 T\u1eadp 1):<\/b><\/span><\/p>\n

– Th\u1eddi gian: \u0110\u00eam khuya.<\/p>\n

– Kh\u00f4ng gian: tr\u1ed1ng tr\u1ea3i, m\u00eanh m\u00f4ng r\u1ee3n ng\u1ee3p.<\/p>\n

– L\u00f2ng ng\u01b0\u1eddi: tr\u01a1 tr\u1ecdi, t\u1eeb\u00a0\u201ctr\u01a1\u201d<\/i>\u00a0\u0111i li\u1ec1n v\u1edbi\u00a0\u201cc\u00e1i h\u1ed3ng nhan\u201d<\/i>\u00a0c\u00f9ng bi\u1ec7n ph\u00e1p \u0111\u1ea3o ng\u1eef g\u1ee3i c\u1ea3m gi\u00e1c x\u00f3t xa, b\u1ebd b\u00e0ng.<\/p>\n

– H\u00ecnh \u1ea3nh t\u01b0\u01a1ng ph\u1ea3n:\u00a0C\u00e1i h\u1ed3ng nhan<\/i>\u00a0( nh\u1ecf b\u00e9- h\u1eefu h\u1ea1n) ><\u00a0n\u01b0\u1edbc non<\/i>\u00a0( to l\u1edbn \u2013 v\u00f4 h\u1ea1n)<\/p>\n

\u2192 T\u00f4 \u0111\u1eadm t\u00e2m tr\u1ea1ng c\u00f4 \u0111\u01a1n, l\u1ebb loi.<\/p>\n

– C\u1ee5m t\u1eeb \u201csay l\u1ea1i t\u1ec9nh\u201d g\u1ee3i l\u00ean c\u00e1i v\u00f2ng lu\u1ea9n qu\u1ea9n, c\u00e0ng bu\u1ed3n, c\u00e0ng c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c n\u1ed7i \u0111au c\u1ee7a th\u00e2n ph\u1eadn.<\/p>\n

– H\u00ecnh \u1ea3nh\u00a0\u201cV\u1ea7ng tr\u0103ng b\u00f3ng x\u1ebf khuy\u1ebft ch\u01b0a tr\u00f2n\u201d<\/i>\u00a0l\u00e0 h\u00ecnh t\u01b0\u1ee3ng ch\u1ee9a hai l\u1ea7n bi k\u1ecbch: tr\u0103ng s\u1eafp t\u00e0n ( b\u00f3ng x\u1ebf) m\u00e0 v\u1eabn khuy\u1ebft ch\u01b0a tr\u00f2n. \u0110\u00f3 l\u00e0 s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi ng\u01b0\u1eddi ph\u1ee5 n\u1eef.<\/p>\n

=> Ngo\u1ea1i c\u1ea3nh c\u0169ng ch\u00ednh l\u00e0 t\u00e2m c\u1ea3nh: Tr\u0103ng = Ng\u01b0\u1eddi (Tr\u0103ng s\u1eafp t\u00e0n m\u00e0 v\u1eabn ch\u01b0a tr\u00f2n \u2013 Tu\u1ed5i cu\u00e2n tr\u00f4i qua m\u00e0 h\u1ea1nh ph\u00fac kh\u00f4ng tr\u1ecdn v\u1eb9n).<\/p>\n

C\u00e2u 2 (trang 19 sgk Ng\u1eef V\u0103n 11 T\u1eadp 1):<\/b><\/span><\/p>\n

H\u00ecnh t\u01b0\u1ee3ng thi\u00ean nhi\u00ean trong hai c\u00e2u 5 v\u00e0 6 di\u1ec5n t\u1ea3 n\u1ed7i ni\u1ec1m ph\u1eabn u\u1ea5t c\u1ee7a con ng\u01b0\u1eddi:<\/p>\n

Ph\u00e9p \u0111\u1ed1i t\u1eebng c\u1eb7p:\u00a0xi\u00ean ngang >< \u0111\u00e2m to\u1ea1c<\/i>;\u00a0r\u00eau t\u1eebng \u0111\u00e1m >< \u0111\u00e1 m\u1ea5y h\u00f2n; m\u1eb7t \u0111\u1ea5t >< ch\u00e2n m\u00e2y…<\/i><\/p>\n

– Bi\u1ec7n ph\u00e1p \u0111\u1ea3o ng\u1eef k\u1ebft h\u1ee3p v\u1edbi c\u00e1c \u0111\u1ed9ng t\u1eeb m\u1ea1nh ( xi\u00ean, \u0111\u00e2m) th\u1ec3 hi\u1ec7n s\u1ef1 b\u01b0\u1edbng b\u1ec9nh, ngang ng\u1ea1nh c\u1ee7a H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng.<\/p>\n

– R\u00eau (sinh v\u1eadt m\u1ec1m y\u1ebfu, nh\u1ecf b\u00e9), \u0111\u00e1 (th\u1ea5p b\u00e9) kh\u00f4ng cam ch\u1ecbu s\u1ed1 ph\u1eadn, b\u1eb1ng m\u1ecdi c\u00e1ch c\u1ed1 v\u01b0\u01a1n l\u00ean nh\u1eefng c\u1ea3n tr\u1edf ( m\u1eb7t \u0111\u1ea5t, ch\u00e2n m\u00e2y) \u0111\u1ec3 ch\u1ee9ng t\u1ecf m\u00ecnh\u2192 \u0110\u00e1, r\u00eau nh\u01b0 \u0111ang o\u00e1n h\u1eddn, nh\u01b0 \u0111ang ph\u1ea3n kh\u00e1ng quy\u1ebft li\u1ec7t v\u1edbi t\u1ea1o h\u00f3a.<\/p>\n

=> Hai c\u00e2u th\u01a1 kh\u1eb3ng \u0111\u1ecbnh s\u1ee9c s\u1ed1ng m\u1ea1nh m\u1ebd, quy\u1ebft li\u1ec7t, mu\u1ed1n b\u1ee9t ph\u00e1 r\u00e0o c\u1ea3n \u0111\u1ec3 t\u1ef1 \u0111i t\u00ecm h\u1ea1nh ph\u00fac c\u1ee7a t\u00e1c gi\u1ea3.<\/p>\n

C\u00e2u 3 (trang 19 sgk Ng\u1eef V\u0103n 11 T\u1eadp 1):<\/b><\/span><\/p>\n

Hai c\u00e2u k\u1ebft l\u00e0 t\u00e2m tr\u1ea1ng ch\u00e1n ch\u01b0\u1eddng, bu\u1ed3n t\u1ee7i c\u1ee7a nh\u00e2n v\u1eadt tr\u1eef t\u00ecnh:<\/p>\n

– C\u1ee5m t\u1eeb\u00a0\u201cxu\u00e2n \u0111i xu\u00e2n l\u1ea1i l\u1ea1i\u201d<\/i>: Xu\u00e2n c\u1ee7a t\u1ef1 nhi\u00ean qua \u0111i r\u1ed3i s\u1ebd tr\u1edf l\u1ea1i nh\u01b0ng tu\u1ed5i xu\u00e2n c\u1ee7a ng\u01b0\u1eddi th\u00ec kh\u00f4ng. T\u1eeb\u00a0\u201cl\u1ea1i\u201d<\/i>\u00a0th\u1ee9 nh\u1ea5t l\u00e0 th\u00eam m\u1ed9t l\u1ea7n n\u1eefa, c\u00f2n t\u1eeb \u201cl\u1ea1i\u201d th\u1ee9 hai mang ngh\u0129a tr\u1edf l\u1ea1i. M\u00f9a xu\u00e2n tr\u1edf l\u1ea1i nh\u01b0ng tu\u1ed5i xu\u00e2n l\u1ea1i qua \u0111i.<\/p>\n

– Ngh\u1ec7 thu\u1eadt t\u0103ng ti\u1ebfn\u00a0\u201cm\u1ea3nh t\u00ecnh \u2013 san s\u00ea- t\u00ed \u2013 con con\u201d<\/i>\u00a0nh\u1ea5n m\u1ea1nh s\u1ef1 nh\u1ecf b\u00e9 d\u1ea7n, s\u1ef1 \u00edt \u1ecfi, s\u1ef1 s\u1ebb chia trong h\u1ea1nh ph\u00fac cu\u1ed9c \u0111\u1eddi c\u1ee7a H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng l\u00e0m cho ngh\u1ecbch c\u1ea3nh c\u00e0ng \u00e9o le h\u01a1n: m\u1ea3nh t\u00ecnh v\u1ed1n \u0111\u00e3 \u00edt, \u0111\u00e3 b\u00e9, \u0111\u00e3 kh\u00f4ng tr\u1ecdn v\u1eb9n l\u1ea1i c\u00f2n ph\u1ea3i \u201csan s\u1ebb\u201d th\u00e0nh ra ch\u1eb3ng c\u00f2n g\u00ec (t\u00ed con con) n\u00ean c\u00e0ng x\u00f3t xa, t\u1ed9i nghi\u1ec7p.<\/p>\n

C\u00e2u 4 (trang 19 sgk Ng\u1eef V\u0103n 11 T\u1eadp 1):<\/b><\/span><\/p>\n

B\u00e0i th\u01a1 v\u1eeba n\u00f3i l\u00ean bi k\u1ecbch, v\u1eeba cho th\u1ea5y kh\u00e1t v\u1ecdng h\u1ea1nh ph\u00fac c\u1ee7a H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng. Bi k\u1ecbch trong b\u00e0i th\u01a1 l\u00e0 bi k\u1ecbch c\u1ee7a tu\u1ed5i xu\u00e2n, c\u1ee7a duy\u00ean ph\u1eadn. Xu\u00e2n \u0111i r\u1ed3i xu\u00e2n l\u1ea1i \u0111\u1ebfn, th\u1eddi gian c\u1ee7a thi\u00ean nhi\u00ean, c\u1ee7a tr\u1eddi \u0111\u1ea5t c\u1ee9 tu\u1ea7n ho\u00e0n m\u00e0 tu\u1ed5i xu\u00e2n c\u1ee7a con ng\u01b0\u1eddi c\u1ee9 m\u00e3i qua \u0111i kh\u00f4ng tr\u1edf l\u1ea1i. Trong ho\u00e0n c\u1ea3nh \u1ea5y, s\u1ef1 nh\u1ee1 nh\u00e0ng, s\u1ef1 d\u1edf dang c\u1ee7a duy\u00ean t\u00ecnh c\u00e0ng t\u0103ng th\u00eam s\u1ef1 x\u00f3t xa. R\u01a1i v\u00e0o ho\u00e0n c\u1ea3nh \u1ea5y, tr\u01b0\u1edbc s\u1ef1 tr\u1edb tr\u00eau c\u1ee7a s\u1ed1 ph\u1eadn nh\u01b0ng H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng v\u1eabn lu\u00f4n kh\u00e1t khao h\u1ea1nh ph\u00fac, g\u1ed3ng m\u00ecnh l\u00ean \u0111\u1ec3 ch\u1ed1ng l\u1ea1i s\u1ef1 nghi\u1ec7t ng\u00e3 c\u1ee7a s\u1ed1 ph\u1eadn.<\/p>\n

III. Luy\u1ec7n t\u1eadp<\/h2>\n

(trang 20 sgk Ng\u1eef V\u0103n 11 T\u1eadp 1):<\/b>\u00a0\u0110\u1ecdc T\u1ef1 t\u00ecnh …<\/p>\n

So s\u00e1nh b\u00e0i th\u01a1\u00a0T\u1ef1 t\u00ecnh I v\u00e0 T\u1ef1 t\u00ecnh II<\/i>\u00a0c\u1ee7a t\u00e1c gi\u1ea3 H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng<\/p>\n

1. Gi\u1ed1ng nhau:<\/p>\n

– S\u1eed d\u1ee5ng th\u01a1 N\u00f4m \u0111\u01b0\u1eddng lu\u1eadt, th\u1ec3 hi\u1ec7n t\u00e0i n\u0103ng c\u1ee7a t\u00e1c gi\u1ea3 trong vi\u1ec7c s\u1eed d\u1ee5ng ng\u00f4n ng\u1eef s\u1eafc s\u1ea3o, t\u00e0i hoa nh\u1ea5t l\u00e0 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p ngh\u1ec7 thu\u1eadt: \u0111\u1ea3o ng\u1eef, ph\u00e9p \u0111\u1ed1i, t\u0103ng ti\u1ebfn…<\/p>\n

– B\u1ed9c l\u1ed9 t\u00e2m tr\u1ea1ng: n\u1ed7i bu\u1ed3n t\u1ee7i, x\u00f3t xa, ph\u1eabn u\u1ea5t tr\u01b0\u1edbc c\u1ea3nh duy\u00ean ph\u1eadn h\u1ea9m hiu.<\/p>\n

2. Kh\u00e1c nhau:<\/p>\n

– C\u1ea3m x\u00fac trong\u00a0T\u1ef1 t\u00ecnh I<\/i>\u00a0l\u00e0 n\u1ed7i ni\u1ec1m c\u1ee7a nh\u00e0 th\u01a1 tr\u01b0\u1edbc duy\u00ean ph\u1eadn h\u1ea9m hiu, nhi\u1ec1u m\u1ea5t m\u00e1t, tr\u01b0\u1edbc l\u1ebd \u0111\u1eddi \u0111\u1ea7y ngh\u1ecbch c\u1ea3nh, \u0111\u1ed3ng th\u1eddi l\u00e0 s\u1ef1 v\u01b0\u01a1n l\u00ean c\u1ee7a ch\u00ednh b\u1ea3n th\u00e2n, th\u00e1ch \u0111\u1ed1 l\u1ea1i duy\u00ean ph\u1eadn.<\/p>\n

– C\u00f2n \u1edf\u00a0T\u1ef1 t\u00ecnh II<\/i>, c\u0169ng l\u00e0 s\u1ef1 th\u1ec3 hi\u1ec7n c\u1ee7a bi k\u1ecbch duy\u00ean ph\u1eadn mu\u00f4n m\u00e0ng, c\u1ed1 g\u1eafng v\u01b0\u01a1n l\u00ean nh\u01b0ng cu\u1ed1i c\u00f9ng c\u0169ng kh\u00f4ng tho\u00e1t \u0111\u01b0\u1ee3c bi k\u1ecbch. Ch\u00ednh v\u00ec th\u1ebf bi k\u1ecbch nh\u01b0 \u0111\u01b0\u1ee3c nh\u00e2n l\u00ean, ph\u1eabn u\u1ea5t h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"

I. V\u1ec1 t\u00e1c gi\u1ea3, t\u00e1c ph\u1ea9m – H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng ng\u01b0\u1eddi l\u00e0ng Qu\u1ef3nh \u0110\u00f4i, huy\u1ec7n Qu\u1ef3nh L\u01b0u, t\u1ec9nh Ngh\u1ec7 An nh\u01b0ng ch\u1ee7 y\u1ebfu s\u1ed1ng \u1edf kinh th\u00e0nh Th\u0103ng Long. B\u00e0 \u0111i nhi\u1ec1u n\u01a1i, th\u00e2n thi\u1ebft v\u1edbi nhi\u1ec1u danh s\u0129 nh\u01b0 Nguy\u1ec5n Du. Cu\u1ed9c \u0111\u1eddi, t\u00ecnh duy\u00ean c\u1ee7a H\u1ed3 Xu\u00e2n H\u01b0\u01a1ng nhi\u1ec1u \u00e9o le, ngang tr\u00e1i. […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1316],"tags":[1453,1508],"yoast_head":"\n