{"id":17924,"date":"2024-03-08T01:56:53","date_gmt":"2024-03-08T01:56:53","guid":{"rendered":"https:\/\/soicau4048.minhngocxoso.com\/?p=17924"},"modified":"2024-03-08T01:56:53","modified_gmt":"2024-03-08T01:56:53","slug":"phuong-phap-soi-cau-theo-giai-dac-biet-va-giai-7","status":"publish","type":"post","link":"https:\/\/devipmb.com\/phuong-phap-soi-cau-theo-giai-dac-biet-va-giai-7\/","title":{"rendered":"ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u theo gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 gi\u1ea3i 7"},"content":{"rendered":"

<\/p>\n\n\n

Hi\u1ec7n nay c\u00f3 r\u1ea5t nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 kh\u00e1c nhau, trong \u0111\u00f3 ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 \u0111\u1ec1 tam gi\u00e1c r\u1ea5t \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi \u01b0a chu\u1ed9ng do d\u1ec5 \u00e1p d\u1ee5ng c\u0169ng nh\u01b0 t\u00ednh hi\u1ec7u qu\u1ea3 t\u01b0\u01a1ng \u0111\u1ed1i cao. Kh\u00f4ng ch\u1ec9 nh\u1eefng ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 th\u00f4ng th\u01b0\u1eddng s\u1eed d\u1ee5ng m\u00e0 c\u00e1c cao th\u1ee7 l\u00f4 \u0111\u1ec1 c\u0169ng th\u01b0\u1eddng xuy\u00ean \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y. Nh\u1eefng tuy\u1ec7t chi\u00eau soi c\u1ea7u tam gi\u00e1c s\u1ebd \u0111\u01b0\u1ee3c b\u1eadt m\u00ed cho c\u00e1c b\u1ea1n trong b\u00e0i vi\u1ebft n\u00e0y. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u nh\u00e9.<\/p>\n\n\n\n

Soi c\u1ea7u tam gi\u00e1c l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n

Kh\u00e1i ni\u1ec7m<\/strong><\/h3>\n\n\n\n

Hi\u1ec3u m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, soi c\u1ea7u tam gi\u00e1c<\/strong> l\u00e0 m\u1ed9t c\u00e1ch c\u00e1c b\u1ea1n gh\u00e9p nh\u1eefng con s\u1ed1 c\u1ee7a c\u00e1c gi\u1ea3i v\u1edbi nhau \u0111\u1ec3 t\u1ea1o th\u00e0nh con l\u00f4 \u0111\u00e1nh cho ng\u00e0y h\u00f4m sau. \u0110i\u1ec1u kh\u00e1c bi\u1ec7t l\u00e0 c\u00e1ch soi n\u00e0y l\u00e0 ch\u1ecdn nh\u1eefng v\u1ecb tr\u00ed n\u1eb1m t\u1ea1i \u0111\u1ec9nh ho\u1eb7c n\u1eb1m tr\u00ean c\u1ea1nh h\u00ecnh tam gi\u00e1c \u0111\u1ec3 gh\u00e9p s\u1ed1.<\/p>\n\n\n\n

V\u00ec sao l\u00e0 h\u00ecnh tam gi\u00e1c m\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 h\u00ecnh tr\u00f2n, h\u00ecnh ch\u1eef nh\u1eadt hay h\u00ecnh vu\u00f4ng?<\/strong><\/h3>\n\n\n\n

T\u1ea5t nhi\u00ean c\u00e1c chuy\u00ean gia l\u00f4 \u0111\u1ec1 khi ph\u00e1t minh m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u \u0111\u1ec1u ph\u1ea3i c\u00f3 c\u01a1 s\u1edf, ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 tam gi\u00e1c c\u0169ng v\u1eady.<\/p>\n\n\n\n

\u00d4ng b\u00e0 ta th\u01b0\u1eddng n\u00f3i \u201cv\u1eefng nh\u01b0 ki\u1ec1ng 3 ch\u00e2n\u201d t\u01b0\u01a1ng \u1ee9ng v\u1edbi 3 \u0111\u1ec9nh c\u1ee7a h\u00ecnh tam gi\u00e1c, do \u0111\u00f3 vi\u1ec7c ch\u1ecdn h\u00ecnh tam gi\u00e1c \u0111\u1ec3 soi c\u1ea7u l\u00f4 nh\u1eb1m kh\u1eb3ng \u0111\u1ecbnh t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 tam gi\u00e1c, b\u1ea1n s\u1ebd ch\u1ecdn nh\u1eefng s\u1ed1 n\u1eb1m tr\u00ean 3 c\u1ea1nh ho\u1eb7c 3 g\u00f3c c\u1ee7a tam gi\u00e1c. V\u1edbi 3 c\u1ea1nh v\u00e0 3 g\u00f3c l\u00e0 \u0111\u1ee7 \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn c\u00e1c con s\u1ed1 \u0111\u1ec3 gh\u00e9p l\u00f4 r\u1ed3i. N\u1ebfu s\u1eed d\u1ee5ng h\u00ecnh vu\u00f4ng ho\u1eb7c h\u00ecnh ch\u1eef nh\u1eadt th\u00ec nhi\u1ec1u qu\u00e1, c\u00f2n s\u1eed d\u1ee5ng h\u00ecnh tr\u00f2n th\u00ec\u2026 kh\u00f4ng th\u1ec3 n\u00e0o t\u00ecm \u0111\u01b0\u1ee3c s\u1ed1.<\/p>\n\n\n\n

C\u00e1c b\u01b0\u1edbc \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u tam gi\u00e1c<\/strong><\/h2>\n\n\n\n

B\u01b0\u1edbc 1<\/strong><\/h3>\n\n\n\n

Tr\u01b0\u1edbc ti\u00ean ch\u00fang ta h\u00e3y ch\u1ecdn c\u00e1c gi\u1ea3i th\u01b0\u1edfng m\u00e0 ch\u00fang ta mu\u1ed1n ch\u1ecdn \u0111\u1ec3 gh\u00e9p c\u1ea7u. C\u1ea7n l\u01b0u \u00fd l\u00e0 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 gi\u1ea3i nh\u1ea5t lu\u00f4n ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1ec3 gh\u00e9p c\u1ea7u, trong \u0111\u00f3 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t s\u1ebd kh\u00f4ng n\u1eb1m trong h\u00ecnh tam gi\u00e1c ch\u00fang ta v\u1eabn ph\u1ea3i ch\u1ecdn v\u00ec \u0111\u00e2y l\u00e0 c\u01a1 s\u1edf r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ch\u1ecdn l\u00f4 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

\u1ede \u0111\u00e2y ch\u00fang ta s\u1ebd ch\u1ecdn d\u00e3y s\u1ed1 th\u1ee9 2 c\u1ee7a gi\u1ea3i 6. Ta c\u00f3:<\/p>\n\n\n\n

Gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0: 04116<\/p>\n\n\n\n

Gi\u1ea3i nh\u1ea5t l\u00e0: 18344<\/p>\n\n\n\n

Gi\u1ea3i 6 l\u00e0: 052<\/p>\n\n\n\n

B\u01b0\u1edbc 2<\/strong><\/h3>\n\n\n\n

D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 gi\u1ea3i nh\u1ea5t \u0111\u1ec3 ch\u1ecdn ra con s\u1ed1 kh\u00e1c bi\u1ec7t, lo\u1ea1i nh\u1eefng con s\u1ed1 gi\u1ed1ng nhau.<\/p>\n\n\n\n

\u1ede b\u01b0\u1edbc n\u00e0y ch\u00fang ta s\u1ebd ki\u1ec3m tra gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 gi\u1ea3i nh\u1ea5t. C\u00e1ch ki\u1ec3m tra nh\u01b0 sau: b\u1ea1n s\u1ebd xem d\u00e3y s\u1ed1 c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 gi\u1ea3i nh\u1ea5t c\u00f3 nh\u1eefng ch\u1eef s\u1ed1 n\u00e0o tr\u00f9ng nhau hay kh\u00f4ng, n\u1ebfu c\u00f3 th\u00ec ch\u00fang ta s\u1ebd lo\u1ea1i n\u00f3 ra v\u00e0 ch\u1ec9 \u0111\u1ec3 l\u1ea1i nh\u1eefng s\u1ed1 kh\u00f4ng b\u1ecb tr\u00f9ng l\u1eb7p<\/p>\n\n\n\n

Nh\u00ecn v\u00e0o gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 th\u1ea5y s\u1ed1 1 l\u1eb7p l\u1ea1i 2 l\u1ea7n n\u00ean ta lo\u1ea1i ra. S\u1ed1 0, 4 v\u00e0 6 \u0111\u1ec1u l\u00e0 s\u1ed1 ch\u1eafn n\u00ean ta lo\u1ea1i h\u1ebft.<\/p>\n\n\n\n

Nh\u00ecn v\u00e0o gi\u1ea3i nh\u1ea5t ta c\u00f3 s\u1ed1 4 l\u1eb7p l\u1ea1i 2 l\u1ea7n. S\u1ed1 1 v\u00e0 3 \u0111\u1ec1u l\u00e0 s\u1ed1 l\u1ebb n\u00ean ta c\u0169ng lo\u1ea1i. Nh\u01b0 v\u1eady ta c\u00f2n l\u1ea1i s\u1ed1 8 \u0111\u1ec3 ch\u1ecdn.<\/p>\n\n\n\n

B\u01b0\u1edbc 3<\/strong><\/h3>\n\n\n\n

Gh\u00e9p s\u1ed1 ta v\u1eeba ch\u1ecdn \u0111\u01b0\u1ee3c v\u1edbi gi\u1ea3i cu\u1ed1i c\u00f9ng \u0111\u1ec3 t\u1ea1o th\u00e0nh l\u00f4 \u0111\u00e1nh cho ng\u00e0y h\u00f4m sau.<\/p>\n\n\n\n

Nh\u00ecn v\u00e0o h\u00ecnh ta th\u1ea5y 2 c\u1ea1nh c\u1ee7a h\u00ecnh tam gi\u00e1c \u0111i qua s\u1ed1 0 v\u00e0 s\u1ed1 2 n\u00ean ta s\u1ebd c\u00f3 d\u00e0n l\u00f4 l\u00e0 80 v\u00e0 82. Ngo\u00e0i ra c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 \u0111\u00e1nh l\u00f3t con 02 \u2013 20 ho\u1eb7c 08 \u2013 28.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f2n c\u00f3 t\u00ean g\u1ecdi l\u00e0 soi c\u1ea7u tam gi\u00e1c<\/strong> ng\u01b0\u1ee3c. C\u00e1ch soi c\u1ea7u n\u00e0y nh\u00ecn c\u00f3 v\u1ebb \u0111\u01a1n gi\u1ea3n nh\u01b0ng \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i l\u00e0 ng\u01b0\u1eddi c\u00f3 kinh nghi\u1ec7m l\u00e2u n\u0103m \u0111\u1ec3 c\u00f3 th\u1ec3 n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c nh\u1eefng quy lu\u1eadt, t\u1eeb \u0111\u00f3 l\u1ef1a ch\u1ecdn v\u1ecb tr\u00ed c\u00e1c con s\u1ed1 chu\u1ea9n x\u00e1c.<\/p>\n\n\n\n

M\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u tam gi\u00e1c kh\u00e1c<\/strong><\/h2>\n\n\n\n

Sau khi \u0111\u00e3 hi\u1ec3u nh\u01b0 th\u1ebf n\u00e0o l\u00e0 soi c\u1ea7u l\u00f4 tam gi\u00e1c th\u00ec ch\u00fang ta h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 \u00e1p d\u1ee5ng c\u00e1ch soi c\u1ea7u n\u00e0y sao cho hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u theo gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 gi\u1ea3i 7<\/strong><\/h3>\n\n\n\n

\u0110\u1ed1i v\u1edbi ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ch\u00fang ta s\u1ebd d\u00f9ng ch\u1eef s\u1ed1 n\u1eb1m \u1edf gi\u1eefa gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 gh\u00e9p v\u1edbi ch\u1eef s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a gi\u1ea3i 7.1 v\u00e0 s\u1ed1 ch\u1eef s\u1ed1 cu\u1ed1i c\u00f9ng c\u1ee7a gi\u1ea3i 7.4 (trong \u0111\u00f3 gi\u1ea3i 7.1 l\u00e0 d\u00e3y s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a gi\u1ea3i 7 v\u00e0 7.4 l\u00e0 d\u00e3y s\u1ed1 th\u1ee9 4 c\u1ee7a gi\u1ea3i 7).<\/p>\n\n\n\n

Soi c\u1ea7u theo gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 gi\u1ea3i 7<\/em><\/p>\n\n\n\n

V\u00ed d\u1ee5, nh\u00ecn v\u00e0o b\u1ea3ng k\u1ebft qu\u1ea3 tr\u00ean th\u00ec ta th\u1ea5y s\u1ed1 gi\u1eefa gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 s\u1ed1 3. S\u1ed1 \u0111\u1ea7u c\u1ee7a gi\u1ea3i 7.1 l\u00e0 s\u1ed1 3 v\u00e0 s\u1ed1 cu\u1ed1i gi\u1ea3i 7.4 l\u00e0 s\u1ed1 0.<\/p>\n\n\n\n

Nh\u01b0 v\u1eady ta s\u1ebd c\u00f3 d\u00e0n l\u00f4 l\u00e0 33 \u2013 30 \u0111\u1ec3 nu\u00f4i trong 3 ng\u00e0y ti\u1ebfp theo. Ngo\u00e0i ra c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 nu\u00f4i th\u00eam con l\u00f4 03 \u0111\u1ec3 l\u00f3t \u0111\u01b0\u1eddng.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u theo gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u00e0 gi\u1ea3i 6<\/strong><\/h3>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u0169ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 ph\u01b0\u01a1ng ph\u00e1p tr\u00ean nh\u01b0ng ta s\u1ebd s\u1eed d\u1ee5ng k\u1ebft qu\u1ea3 gi\u1ea3i 6 thay cho k\u1ebft qu\u1ea3 gi\u1ea3i 7.<\/p>\n\n\n\n

Ta th\u1ea5y s\u1ed1 gi\u1eefa gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 s\u1ed1 5, s\u1ed1 \u0111\u1ea7u gi\u1ea3i 6.1 l\u00e0 s\u1ed1 1 v\u00e0 s\u1ed1 cu\u1ed1i gi\u1ea3i 6.4 l\u00e0 s\u1ed1 8. Do \u0111\u00f3 ta s\u1ebd c\u00f3 d\u00e0n l\u00f4 l\u00e0 51 \u2013 58. C\u00e1c b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 \u0111\u00e1nh l\u00f3t th\u00eam con l\u00f4 15 \u2013 18 \u2013 85 \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng tr\u00fang gi\u1ea3i.<\/p>\n\n\n\n

Hai ph\u01b0\u01a1ng ph\u00e1p tr\u00ean \u0111\u00e2y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u tam gi\u00e1c<\/strong> thu\u1eadn. C\u00e1ch n\u00e0y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng khi ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u l\u00f4 \u0111\u1ec1 theo tam gi\u00e1c ng\u01b0\u1ee3c kh\u00f4ng hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

M\u1ed9t s\u1ed1 l\u01b0u \u00fd<\/strong><\/h2>\n\n\n\n

C\u00e1c b\u1ea1n c\u1ea7n l\u01b0u \u00fd m\u1ed9t s\u1ed1 \u0111i\u1ec3m sau khi ti\u1ebfn h\u00e0nh ph\u01b0\u01a1ng ph\u00e1p n\u00e0y:<\/p>\n\n\n\n