Soi c\u1ea7u \u0111\u1eb7c bi\u1ec7t mi\u1ec1n b\u1eafc <\/b>c\u00f2n \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 d\u1ef1 \u0111o\u00e1n gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a x\u1ed5 s\u1ed1 mi\u1ec1n b\u1eafc. C\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p, t\u00ednh to\u00e1n x\u00e1c su\u1ea5t \u0111\u1ec3 \u0111\u01b0a ra k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c nh\u1ea5t. L\u00fd thuy\u1ebft th\u00ec c\u00f3 v\u1ebb l\u00e0 \u0111\u01a1n gi\u1ea3n nh\u01b0ng \u0111\u1ec3 t\u00ednh to\u00e1n ra con s\u1ed1 \u0111\u00fang th\u00ec kh\u00f4ng ph\u1ea3i ai c\u0169ng l\u00e0m \u0111\u01b0\u1ee3c.<\/p>\n M\u1ee5c l\u1ee5c<\/p>\n<\/div>\n
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