{"id":18506,"date":"2024-03-16T21:06:24","date_gmt":"2024-03-16T21:06:24","guid":{"rendered":"https:\/\/soicau2102.minhngocxoso.com\/?p=18506"},"modified":"2024-03-16T21:06:24","modified_gmt":"2024-03-16T21:06:24","slug":"khai-niem-ve-3-cang-lo-de-3-cang-la-gi","status":"publish","type":"post","link":"https:\/\/xosomobi.top\/khai-niem-ve-3-cang-lo-de-3-cang-la-gi\/","title":{"rendered":"Kh\u00e1i ni\u1ec7m v\u1ec1 3 c\u00e0ng – L\u00f4 \u0111\u1ec1 3 c\u00e0ng l\u00e0 g\u00ec?"},"content":{"rendered":"
\u0110\u1ed1i v\u1edbi nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 c\u00f3 kinh nghi\u1ec7m, h\u1ecd lu\u00f4n b\u1ecb h\u1ea5p d\u1eabn b\u1edfi nh\u1eefng th\u1eed th\u00e1ch ng\u00e0y c\u00e0ng kh\u00f3 kh\u0103n. Vi\u1ec7c soi 2 s\u1ed1 cu\u1ed1i gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u00e3 tr\u1edf n\u00ean qu\u00e1 \u0111\u01a1n gi\u1ea3n v\u00e0 tr\u1edf n\u00ean nh\u00e0m ch\u00e1n \u0111\u1ed1i v\u1edbi h\u1ecd n\u00ean h\u1ecd \u0111\u00e3 t\u00ecm nh\u1eefng c\u00e1ch \u0111\u00e1nh l\u00f4 \u0111\u1ec1 kh\u00e1c kh\u00f3 kh\u0103n h\u01a1n song c\u0169ng thu \u0111\u01b0\u1ee3c nhi\u1ec1u l\u1ee3i nhu\u1eadn h\u01a1n. Ch\u00ednh v\u00ec v\u1eady m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi \u0111\u00e3 l\u1ef1a ch\u1ecdn c\u00e1ch ch\u01a1i 3 c\u00e0ng \u0111\u1ec3 th\u1eed th\u00e1ch b\u1ea3n th\u00e2n nhi\u1ec1u h\u01a1n. Tuy nhi\u00ean kh\u00f4ng ph\u1ea3i ai c\u0169ng bi\u1ebft c\u00e1ch \u0111\u00e1nh 3 c\u00e0ng, do \u0111\u00f3 m\u00e0 h\u00f4m nay ch\u00fang t\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u cho c\u00e1c b\u1ea1n v\u1ec1 3 c\u00e0ng c\u0169ng nh\u01b0 c\u00e1ch d\u1ef1 \u0111o\u00e1n 3 c\u00e0ng<\/strong> chu\u1ea9n x\u00e1c nh\u1ea5t hi\u1ec7n nay.<\/p>\n \u0110\u1ec3 d\u1ef1 \u0111o\u00e1n 3 c\u00e0ng<\/strong> chu\u1ea9n x\u00e1c tr\u01b0\u1edbc ti\u00ean ch\u00fang ta ph\u1ea3i hi\u1ec3u v\u1ec1 kh\u00e1i ni\u1ec7m 3 c\u00e0ng tr\u01b0\u1edbc ti\u00ean.<\/p>\n \u0110\u1ed1i v\u1edbi l\u00f4 \u0111\u1ec1 b\u00ecnh th\u01b0\u1eddng ch\u00fang ta s\u1ebd ch\u1ec9 d\u1ef1 \u0111o\u00e1n 2 s\u1ed1 cu\u1ed1i c\u1ee7a c\u00e1c gi\u1ea3i x\u1ed5 s\u1ed1 mi\u1ec1n b\u1eafc, mi\u1ec1n trung ho\u1eb7c mi\u1ec1n nam. C\u00f2n l\u00f4 \u0111\u1ec1 3 c\u00e0ng ngh\u0129a l\u00e0 b\u1ea1n d\u1ef1 \u0111o\u00e1n 3 s\u1ed1 cu\u1ed1i c\u1ee7a c\u00e1c gi\u1ea3i x\u1ed5 s\u1ed1 3 mi\u1ec1n. Ch\u00ednh v\u00ec v\u1eady, \u1edf m\u1ed7i v\u00f9ng mi\u1ec1n, ch\u00fang ta s\u1ebd c\u00f3 c\u00e1ch soi c\u1ea7u t\u01b0\u01a1ng \u1ee9ng. V\u00ed d\u1ee5 nh\u01b0 soi c\u1ea7u 3 c\u00e0ng mi\u1ec1n Trung, mi\u1ec1n Nam, mi\u1ec1n B\u1eafc.<\/p>\n Nh\u01b0 v\u1eady th\u00ec khi \u0111\u00e1nh 3 c\u00e0ng s\u1ebd kh\u00f3 h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi \u0111\u00e1nh l\u00f4 \u0111\u1ec1 b\u00ecnh th\u01b0\u1eddng v\u00ec 2 l\u00ed do:<\/p>\n L\u00ed do th\u1ee9 nh\u1ea5t \u0111\u00f3 l\u00e0 b\u1ea1n s\u1ebd ph\u1ea3i d\u1ef1 \u0111o\u00e1n tr\u00fang nhi\u1ec1u ch\u1eef s\u1ed1 h\u01a1n so v\u1edbi \u0111\u00e1nh l\u00f4 \u0111\u1ec1 b\u00ecnh th\u01b0\u1eddng;<\/p>\n L\u00ed do th\u1ee9 2 \u0111\u00f3 l\u00e0 s\u1ed1 gi\u1ea3i l\u00f4 s\u1ebd \u00edt h\u01a1n v\u00ec ch\u00fang ta s\u1ebd kh\u00f4ng c\u00f2n gi\u1ea3i 7 XSMB hay gi\u1ea3i 8 c\u1ee7a XSMN.<\/p>\n V\u00ec c\u00e1ch \u0111\u00e1nh kh\u00f3 h\u01a1n n\u00ean t\u1ec9 l\u1ec7 \u0103n chia khi \u0111\u00e1nh 3 c\u00e0ng c\u0169ng kh\u00e1c so v\u1edbi \u0111\u00e1nh l\u00f4 \u0111\u1ec1 th\u00f4ng th\u01b0\u1eddng.<\/p>\n T\u1ec9 l\u1ec7 \u0103n chia c\u1ee7a l\u00f4 \u0111\u1ec1 3 c\u00e0ng dao \u0111\u1ed9ng t\u1eeb 1 \u0103n 400 \u2013 1 \u0103n 700, ngh\u0129a l\u00e0 n\u1ebfu b\u1ea1n \u0111\u00e1nh 100 ngh\u00ecn th\u00ec s\u1ebd \u0103n \u0111\u01b0\u1ee3c 40 \u2013 70 tri\u1ec7u n\u1ebfu tr\u00fang gi\u1ea3i. S\u1ed1 ti\u1ec1n b\u1ecf \u0111\u1ec3 \u0111\u00e1nh 1 \u0111i\u1ec3m l\u00f4 \u0111\u1ec1 3 c\u00e0ng s\u1ebd t\u00f9y thu\u1ed9c v\u00e0o t\u1eebng khu v\u1ef1c song s\u1ebd cao h\u01a1n khi \u0111\u00e1nh 1 \u0111i\u1ec3m l\u00f4 \u0111\u1ec1 th\u00f4ng th\u01b0\u1eddng.<\/p>\n \u0110\u1ed1i v\u1edbi ph\u01b0\u01a1ng ph\u00e1p d\u1ef1 \u0111o\u00e1n 3 c\u00e0ng n\u00e0y ch\u00fang ta s\u1ebd th\u1ef1c hi\u1ec7n nh\u01b0 sau:<\/p>\n Tr\u01b0\u1edbc ti\u00ean b\u1ea1n t\u00ednh b\u1ea1ch th\u1ee7 l\u00f4 theo nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p t\u1ed1i \u01b0u m\u00e0 b\u1ea1n hay \u00e1p d\u1ee5ng.<\/p>\n Sau khi t\u00ednh \u0111\u01b0\u1ee3c b\u1ea1ch th\u1ee7 l\u00f4, b\u1ea1n s\u1ebd t\u00ednh t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a con b\u1ea1ch th\u1ee7 b\u1ea1n v\u1eeba ch\u1ecdn.<\/p>\n B\u1ea1n s\u1ebd gh\u00e9p t\u1ed5ng \u0111\u00f3 v\u1edbi con b\u1ea1ch th\u1ee7 \u0111\u1ec3 t\u1ea1o th\u00e0nh l\u00f4 3 c\u00e0ng chu\u1ea9n x\u00e1c.<\/p>\n V\u00ed d\u1ee5, h\u00f4m nay b\u1ea1n t\u00ednh \u0111\u01b0\u1ee3c con b\u1ea1ch th\u1ee7 l\u00f4 l\u00e0 22, nh\u01b0 v\u1eady ta s\u1ebd c\u00f3 t\u1ed5ng l\u00e0 2+2=4. Nh\u01b0 v\u1eady ta s\u1ebd c\u00f3 con l\u00f4 3 c\u00e0ng l\u00e0 422.<\/p>\n C\u00e1ch \u0111\u00e1nh n\u00e0y kh\u00e1 \u0111\u01a1n gi\u1ea3n, b\u1ea1n ch\u1ec9 c\u1ea7n gh\u00e9p con \u0111\u1ec1 v\u1ec1 h\u00f4m tr\u01b0\u1edbc v\u1edbi th\u1ee9 c\u1ee7a h\u00f4m b\u1ea1n \u0111\u00e1nh \u0111\u1ec3 t\u1ea1o th\u00e0nh l\u00f4 3 c\u00e0ng.<\/p>\n V\u00ed d\u1ee5, h\u00f4m nay l\u00e0 th\u1ee9 3 v\u00e0 \u0111\u1ec1 v\u1ec1 ng\u00e0y h\u00f4m qua l\u00e0 con 09. Nh\u01b0 v\u1eady ch\u00fang ta s\u1ebd c\u00f3 con l\u00f4 3 c\u00e0ng cho h\u00f4m nay l\u00e0 309.<\/p>\n Ta c\u00f3 b\u1ed9 s\u1ed1 b\u00f3ng \u00e2m nh\u01b0 sau:<\/p>\n Ta c\u00f3 b\u1ed9 s\u1ed1 b\u00f3ng d\u01b0\u01a1ng nh\u01b0 sau:<\/p>\n Ta th\u1ef1c hi\u1ec7n nh\u01b0 sau:<\/p>\n T\u00ednh t\u1ed5ng \u0111\u1ec1 v\u1ec1 h\u00f4m tr\u01b0\u1edbc. Trong tr\u01b0\u1eddng h\u1ee3p t\u1ed5ng \u0111\u1ec1 t\u1eeb 10 tr\u1edf l\u00ean th\u00ec ta ti\u1ebfp t\u1ee5c t\u00ednh t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a t\u1ed5ng \u0111\u00f3.<\/p>\n V\u00ed d\u1ee5 ta c\u00f3 \u0111\u1ec1 v\u1ec1 h\u00f4m tr\u01b0\u1edbc l\u00e0 65, ta s\u1ebd c\u00f3 t\u1ed5ng l\u00e0 6+5=11. Ta th\u1ea5y t\u1ed5ng l\u1edbn h\u01a1n 10 n\u00ean ta ti\u1ebfp t\u1ee5c c\u1ed9ng 1+1= 2.<\/p>\n Soi b\u00f3ng c\u1ee7a t\u1ed5ng v\u1eeba c\u1ed9ng theo b\u00f3ng \u00e2m d\u01b0\u01a1ng<\/p>\n V\u00ed d\u1ee5 ta v\u1eeba t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng l\u00e0 2 sau khi soi b\u00f3ng \u00e2m d\u01b0\u01a1ng th\u00ec ta c\u00f3 b\u00f3ng \u00e2m c\u1ee7a 2 l\u00e0 9 v\u00e0 b\u00f3ng d\u01b0\u01a1ng c\u1ee7a 2 l\u00e0 7.<\/p>\n Ta s\u1ebd gh\u00e9p c\u00e1c s\u1ed1 v\u1eeba t\u00ednh \u0111\u01b0\u1ee3c v\u1edbi \u0111\u1ec1 v\u1ec1 h\u00f4m tr\u01b0\u1edbc \u0111\u1ec3 t\u1ea1o th\u00e0nh d\u00e0n \u0111\u1ec1 3 c\u00e0ng.<\/p>\n Theo v\u00ed d\u1ee5 tr\u00ean ta t\u00ednh \u0111\u01b0\u1ee3c 3 s\u1ed1 l\u00e0 2, 7 v\u00e0 9 gh\u00e9p v\u1edbi s\u1ed1 \u0111\u1ec1 th\u00ec ta s\u1ebd c\u00f3 d\u00e0n \u0111\u1ec1 3 c\u00e0ng l\u00e0 265 \u2013 765 \u2013 965.<\/p>\n Khi d\u1ef1 \u0111o\u00e1n \u0111\u1ec1 3 c\u00e0ng c\u00e1c b\u1ea1n c\u1ea7n ch\u00fa \u00fd m\u1ed9t s\u1ed1 \u0111i\u1ec3m sau \u0111\u1ec3 tr\u00e1nh thua l\u1ed7 kh\u00f4ng \u0111\u00e1ng c\u00f3 c\u0169ng nh\u01b0 \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111\u00e1nh \u0111\u1ec1 3 c\u00e0ng hi\u1ec7u qu\u1ea3.<\/p>\n B\u00ed k\u00edp d\u1ef1 \u0111o\u00e1n 3 c\u00e0ng<\/strong> \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u00fang t\u00f4i ti\u1ebft l\u1ed9 tr\u00ean \u0111\u00e2y ch\u1eafc ch\u1eafn s\u1ebd gi\u00fap \u00edch r\u1ea5t nhi\u1ec1u cho c\u00e1c b\u1ea1n khi \u0111\u00e1nh 3 c\u00e0ng. Trong qu\u00e1 tr\u00ecnh \u00e1p d\u1ee5ng c\u00e1c b\u1ea1n kh\u00f4ng n\u00ean \u00e1p d\u1ee5ng r\u1eadp khu\u00f4n m\u00e0 c\u1ea7n b\u1ecf th\u1eddi gian nghi\u00ean c\u1ee9u v\u00e0 c\u1ea3i ti\u1ebfn ph\u01b0\u01a1ng ph\u00e1p ph\u00f9 h\u1ee3p v\u1edbi b\u1ea3n th\u00e2n m\u00ecnh. Ch\u00fac c\u00e1c b\u1ea1n may m\u1eafn.<\/p>\nKh\u00e1i ni\u1ec7m v\u1ec1 3 c\u00e0ng<\/strong><\/h2>\n
L\u00f4 \u0111\u1ec1 3 c\u00e0ng l\u00e0 g\u00ec?<\/strong><\/h3>\n
L\u00fd do l\u00f4 \u0111\u1ec1 3 c\u00e0ng kh\u00f3 h\u01a1n so v\u1edbi l\u00f4 b\u00ecnh th\u01b0\u1eddng:<\/strong><\/h3>\n
T\u1ef7 l\u1ec7 \u0103n chia khi \u0111\u00e1nh 3 c\u00e0ng:<\/strong><\/h3>\n
B\u00ed k\u00edp d\u1ef1 \u0111o\u00e1n 3 c\u00e0ng chu\u1ea9n x\u00e1c 100%<\/strong><\/h2>\n
Ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh \u0111\u1ec1 3 c\u00e0ng theo b\u1ea1ch th\u1ee7 l\u00f4<\/strong><\/h3>\n
B\u01b0\u1edbc 1<\/strong><\/h4>\n
B\u01b0\u1edbc 2<\/strong><\/h4>\n
B\u01b0\u1edbc 3<\/strong><\/h4>\n
C\u00e1ch d\u1ef1 \u0111o\u00e1n 3 c\u00e0ng ch\u00ednh x\u00e1c th\u00f4ng qua \u0111\u1ec1 r\u01a1i<\/strong><\/h3>\n
<\/p>\n
Ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh 3 c\u00e0ng theo b\u00f3ng \u00e2m d\u01b0\u01a1ng<\/strong><\/h3>\n
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B\u01b0\u1edbc 1<\/strong><\/h4>\n
B\u01b0\u1edbc 2<\/strong><\/h4>\n
B\u01b0\u1edbc 3<\/strong><\/h4>\n
M\u1ed9t s\u1ed1 l\u01b0u \u00fd khi \u0111\u00e1nh l\u00f4 \u0111\u1ec1 3 c\u00e0ng<\/strong><\/h2>\n
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K\u1ebft lu\u1eadn v\u1ec1 d\u1ef1 \u0111o\u00e1n l\u00f4 3 c\u00e0ng: <\/strong><\/h2>\n
k\u1ebft qu\u1ea3 mi\u1ec1n b\u1eafc cao c\u1ea5p
<\/span><\/h4>\n