#2.<\/span> \u00c1p d\u1ee5ng c\u00f4ng th\u1ee9c to\u00e1n h\u1ecdc<\/h3>\nM\u1ed9t c\u00e1ch t\u00ednh x\u00e1c su\u1ea5t b\u1ea7u cua hi\u1ec7u qu\u1ea3 kh\u00e1c anh em n\u00ean \u00e1p d\u1ee5ng l\u00e0 d\u1ef1a v\u00e0o c\u00f4ng th\u1ee9c to\u00e1n h\u1ecdc. Theo \u0111\u00f3, khi ng\u01b0\u1eddi ch\u01a1i \u0111\u1eb7t c\u01b0\u1ee3c v\u00e0o v\u00e1n c\u01b0\u1ee3c b\u1ea7u cua s\u1ebd c\u00f3 3 kh\u1ea3 n\u0103ng x\u1ea3y ra:<\/p>\n