\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 c\u00f3 kinh nghi\u1ec7m ch\u01a1i l\u00f4 \u0111\u1ec1 r\u1ed3i th\u00ec ch\u1eafc ch\u1eafn h\u1ecd s\u1ebd th\u01b0\u1eddng \u00e1p d\u1ee5ng c\u00e1ch soi c\u00e2\u0300u l\u00f4 xi\u00ean<\/strong> v\u00e0o trong l\u00f4 \u0111\u1ec1. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi m\u1edbi t\u1eadp ch\u01a1i l\u00f4 \u0111\u1ec1 th\u00ec c\u00f3 l\u1ebd kh\u00f4ng bi\u1ebft qu\u00e1 nhi\u1ec1u v\u1ec1 l\u00f4 \u0111\u1ec1. V\u1eady h\u00e3y theo d\u00f5i b\u00e0i vi\u1ebft n\u00e0y ng\u00e0y \u0111\u1ec3 c\u00f3 m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng qu\u00e1t nh\u1ea5t v\u1ec1 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ch\u01a1i l\u00f4 \u0111\u1ec1<\/i>.<\/p>\n N\u1ed9i dung ch\u00ednh<\/p>\n<\/div>\n Tr\u01b0\u1edbc khi t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch ch\u01a1i th\u00ec chi\u1ebfc ti\u00ean anh em n\u00ean t\u00ecm hi\u1ec3u k\u1ef9 v\u1ec1 kh\u00e1i ni\u1ec7m c\u1ee7a n\u00f3 tr\u01b0\u1edbc \u0111\u00e3.<\/p>\n L\u00f4 xi\u00ean l\u00e0 t\u1eeb \u0111\u01b0\u1ee3c gh\u00e9p t\u1eeb 2 t\u1eeb \u0111\u01a1n l\u00e0 l\u00f4 v\u00e0 xi\u00ean, l\u00f4 l\u00e0 c\u00e1c con s\u1ed1 \u0111\u00e3 t\u1eebng xu\u1ea5t hi\u1ec7n trong b\u1ea3ng k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u00e0ng ng\u00e0y c\u00f2n xi\u00ean l\u00e0 c\u00e1ch m\u00e0 ch\u00fang ta k\u1ebft n\u1ed1i 2 con s\u1ed1 kh\u00f4ng c\u00f3 li\u00ean quan g\u00ec \u0111\u1ebfn nhau \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t c\u1eb7p 2 s\u1ed1 ho\u1eb7c 3 \u0111\u1ebfn 4 s\u1ed1 c\u00f9ng m\u1ed9t l\u00fac<\/p>\n C\u00e1ch Soi c\u00e2\u0300u l\u00f4 xi\u00ean c\u0169ng d\u1ec5 d\u00e0ng , anh em ch\u1ec9 c\u1ea7n ch\u1ecdn cho m\u00ecnh nh\u1eefng con s\u1ed1 m\u00e0 m\u00ecnh cho l\u00e0 \u0111\u1eb9p nh\u1ea5t, may m\u1eafn nh\u1ea5t \u0111\u1ec3 k\u1ebft h\u1ee3p v\u1edbi nhau.<\/p>\n Th\u1ebf nh\u01b0ng hi\u00ean nay, \u0111\u1ea1i \u0111a s\u1ed1 b\u1ed9 ph\u1eadn ng\u01b0\u1eddi ch\u01a1i hi\u1ec7n nay ch\u1ec9 ch\u0103m ch\u0103m v\u00e0o vi\u1ec7c t\u00ecm c\u00e1c con s\u1ed1 m\u00e0 m\u00ecnh cho l\u00e0 c\u00f3 t\u1ef7 l\u1ec7 v\u1ec1 cao nh\u1ea5t trong ng\u00e0y th\u00f4ng qua nh\u1eefng tr\u1ef1c gi\u00e1c c\u1ee7a m\u00ecnh \u0111\u1ec3 mang l\u1ea1i may m\u1eafn.<\/p>\n N\u1ebfu anh em \u00e1p d\u1ee5ng c\u00e1ch ch\u01a1i \u0111\u00f3 th\u00ec r\u1ea5t \u00edt khi c\u00f3 th\u1ec3 tr\u00fang \u0111\u01b0\u1ee3c c\u00e1c con s\u1ed1 n\u00e0y v\u00e0 n\u1ebfu c\u00f3 c\u0169ng ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n r\u1ea5t nh\u1ecf trong \u0111\u1ea1i \u0111a s\u1ed1 ng\u01b0\u1eddi \u1edf \u0111\u00e2y.<\/p>\n Nh\u01b0ng n\u1ebfu b\u1ea1n bi\u1ebft \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n khoa h\u1ecdc th\u00ec kh\u00f4ng ch\u1ec9 t\u00ecm \u0111\u01b0\u1ee3c c\u00e1c con s\u1ed1 m\u1ed9t c\u00e1ch chu\u1ea9n x\u00e1c m\u00e0 c\u00f2n c\u00f3 th\u1ec3 t\u00ednh ra \u0111\u01b0\u1ee3c c\u00e1c t\u1ef7 l\u1ec7 v\u1ec1 cao nh\u1ea5t c\u1ee7a nh\u1eefng con s\u1ed1 \u0111\u00f3.<\/p>\n C\u00e2u h\u1ecfi l\u00f4 xi\u00ean 2, xi\u00ean 3, xi\u00ean 4 \u0103n bao nhi\u00eau, \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i th\u1eafc m\u1eafc. C\u1ee5 th\u1ec3:<\/p>\n Vi\u1ec7c c\u1ea7n t\u00ecm hi\u1ec3u ti\u1ebfp theo ch\u00ednh l\u00e0 t\u00ednh \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 x\u00e1c su\u1ea5t c\u1ee7a c\u00e1c \u0111\u00e1nh trong l\u00f4 xi\u00ean nh\u01b0 : xi\u00ean 2, xi\u00ean 3, xi\u00ean 4.<\/p>\n T\u1ef7 l\u1ec7 x\u00e1c su\u1ea5t c\u1ee7a c\u00e1c con l\u00f4 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n nh\u01b0 sau:<\/p>\n Nh\u01b0ng l\u00f4 xi\u00ean 2 th\u00ec t\u1ef7 l\u1ec7 x\u00e1c su\u1ea5t l\u1ea1i cao h\u01a1n m\u1ed9t ch\u00fat n\u00f3 r\u01a1i v\u00e0o kho\u1ea3ng: 21,5% x 21,5% = 0,0462 \u21d2 x\u00e1c xu\u1ea5t tr\u00fang th\u01b0\u1edfng c\u1ee7a n\u00f3 l\u00e0 4,6%<\/p>\n \u0110\u00e1nh l\u00f4 xi\u00ean 2 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cho l\u00e0 m\u1ed9t l\u00f4 xi\u00ean d\u1ec5 \u0103n nh\u1ea5t trong t\u1ea5t c\u1ea3 ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n l\u00f4 \u0111\u1ec1. V\u00ec vi\u1ec7c c\u1ee7a b\u1ea1n ch\u1ec9 l\u00e0 v\u00e0o ch\u1ecdn cho m\u00ecnh 2 con s\u1ed1 may m\u1eafn nh\u1ea5t \u0111\u1ec3 \u0111\u00e1nh.<\/p>\n N\u1ebfu sau khi \u0111\u00e3 c\u00f3 k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 m\u00e0 v\u1ec1 \u0111\u1ed3ng th\u1eddi 2 con s\u1ed1 \u0111\u00f3 th\u00ec ch\u1eafc ch\u1eafn b\u1ea1n \u0111\u00e3 chi\u1ebfn th\u1eafng r\u1ed3i \u0111\u1ea5y. Nh\u01b0ng n\u1ebfu b\u1ea1n m\u00e0 kh\u00f4ng tr\u00fang 1 trong 2 con s\u1ed1 th\u00ec xin \u0111\u01b0\u1ee3c chia bu\u1ed3n v\u00ec b\u1ea1n \u0111\u00e3 tr\u01b0\u1ee3t l\u00f4 r\u1ed3i.<\/p>\n V\u00e0 th\u00f4ng th\u01b0\u1eddng ch\u00fang ta c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y quy lu\u1eadt c\u1ee7a c\u00e1c con s\u1ed1 th\u01b0\u1eddng xuy\u00ean b\u1eaft c\u1eb7p v\u1edbi nhau nh\u01b0: 374 \u2013 010, 32 \u2013 52, 10 \u2013 44, 33 \u2013 66.<\/p>\n T\u1ef7 l\u1ec7 \u0103n chia th\u01b0\u1edfng c\u1ee7a l\u00f4 xi\u00ean 2 c\u0169ng r\u1ea5t cao khi b\u1ea1n ch\u1ec9 c\u1ea7n b\u1ecf ra 1 \u0111i\u1ec3m l\u00f4 xi\u00ean s\u1ebd thu v\u1ec1 \u0111\u01b0\u1ee3c g\u1ea5p 10 l\u1ea7n s\u1ed1 \u0111i\u1ec3m \u0111\u00f3.<\/p>\n C\u0169ng nh\u01b0 \u0111\u00e1nh l\u00f4 xi\u00ean 2 th\u00ec l\u00f4 xi\u00ean 3 c\u0169ng \u0111\u01b0\u1ee3c coi l\u00e0 l\u1ef1a ch\u1ecdn c\u00e1c con s\u1ed1 \u0111\u1eb9p nh\u1ea5t trong ng\u00e0y th\u00f4ng qua nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n khoa h\u1ecdc v\u00e0 s\u1ef1 may m\u1eafn c\u1ee7a m\u00ecnh.<\/p>\n N\u1ebfu m\u00e0 c\u1ea3 3 con c\u00f9ng v\u1ec1 trong m\u1ed9t ng\u00e0y th\u00ec ch\u00fac m\u1eebng b\u1ea1n \u0111\u00e3 tr\u00fang th\u01b0\u1edfng r\u1ed3i \u0111\u1ea5y.<\/p>\n T\u1ef7 l\u1ec7 \u0103n th\u01b0\u1edfng c\u1ee7a l\u00f4 xi\u00ean 3 ch\u1eafc ch\u1eafn cao h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi l\u00f4 xi\u00ean 2. N\u1ebfu b\u1ea1n \u0111\u00e1nh 1 \u0111i\u1ec3m l\u00f4 xi\u00ean 3 m\u00e0 th\u1eafng th\u00ec s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c g\u1ea5p 40 l\u1ea7n s\u1ed1 \u0111i\u1ec3m \u0111\u00e3 \u0111\u00e1nh.<\/p>\n \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch \u0111\u00e1nh c\u00f3 r\u1ea5t \u00edt ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn kh\u00f4ng ch\u1ec9 n\u00f3 r\u1ea5t \u00edt khi v\u1ec1 m\u00e0 \u0111\u1ed9 \u0111\u00e1nh tr\u00fang c\u00f2n r\u1ea5t kh\u00f3 khi m\u00e0 theo m\u1ed9t quy t\u1eafc c\u1ed1 \u0111\u1ecbnh.<\/p>\n Nh\u01b0ng n\u1ebfu b\u1ea1n m\u00e0 tr\u00fang con l\u00f4 n\u00e0y th\u00ec ch\u1eafc ch\u1eafn s\u1ebd \u0103n th\u01b0\u1edfng r\u1ea5t to \u0111\u1ea5y g\u1ea5p 100 l\u1ea7n s\u1ed1 \u0111i\u1ec3m m\u00e0 m\u00ecnh \u0111\u00e3 \u0111\u00e1nh. Nh\u01b0ng n\u1ebfu b\u1ea1n m\u00e0 ch\u1ec9 c\u1ea7n tr\u01b0\u1ee3t m\u1ed9t con \u1edf trong \u0111\u00f3 th\u00f4i th\u00ec b\u1ea1n c\u0169ng \u0111\u00e3 thua r\u1ed3i.<\/p>\n N\u1ebfu nh\u01b0 b\u1ea1n \u0111\u00e3 bi\u1ebft \u0111\u1ebfn nh\u1eefng c\u00e1ch soi c\u1ea7u l\u00f4 xi\u00ean<\/strong> n\u00e0y v\u00e0 c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n r\u1ed3i th\u00ec ch\u1eafc ch\u1eafn b\u1ea1n s\u1ebd c\u00f3 th\u1ec3 t\u1ef1 tin t\u00ecm cho m\u00ecnh m\u1ed9t con s\u1ed1 \u0111\u1eb9p nh\u1ea5t trong ng\u00e0y h\u00f4m nay r\u1ed3i. Ch\u00fac b\u1ea1n may m\u1eafn!<\/p>\n<\/div>\nTi\u0300m hi\u00ea\u0309u s\u01a1 l\u01b0\u01a1\u0323c v\u00ea\u0300 l\u00f4 xi\u00ean ?<\/b><\/span><\/h2>\n
L\u00f4 xi\u00ean la\u0300 gi\u0300 ?<\/i><\/b><\/span><\/h3>\n
Ca\u0301ch ti\u0301nh ti\u00ea\u0300n l\u00f4 xi\u00ean<\/i><\/b><\/span><\/h3>\n
\n
<\/h3>\n
Xa\u0301c su\u00e2\u0301t tru\u0301ng l\u00f4 xi\u00ean<\/i><\/b><\/span><\/h3>\n
\n
Ca\u0301ch soi c\u00e2\u0300u l\u00f4 xi\u00ean 2 hi\u00ea\u0323u qua\u0309 nh\u00e2\u0301t<\/b><\/span><\/h2>\n
Ca\u0301ch soi c\u00e2\u0300u l\u00f4 xi\u00ean 3 hi\u00ea\u0323u qua\u0309 nh\u00e2\u0301t<\/b><\/span><\/h2>\n
Ca\u0301ch soi c\u00e2\u0300u l\u00f4 xi\u00ean 4 hi\u00ea\u0323u qua\u0309 nh\u00e2\u0301t<\/b><\/span><\/h2>\n
soi chu\u1ea9n c\u1ea7u \u0111\u1eb9p cao c\u1ea5p
<\/span><\/strong><\/h4>\n