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datvivu

datvivu

Đăng ký: 31-08-2015
Offline Đăng nhập: 31-08-2015 - 20:02
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nhan dang tam giac √tan a+√tanb +√tanc=√cota/2 + √ cotb/2 +√cotc/2

31-08-2015 - 19:25

tam gic abc co dac diem gi neu √tan a+√tanb +√tanc=√cota/2 + √ cotb/2 +√cotc/2


tim dang tam giac thoa man √tan a+√tanb +√tanc=√cota/2 + √ cotb/2 +√cotc/2

31-08-2015 - 19:19

tam gic abc co dac diem gi neu √tan a+√tanb +√tanc=√cota/2 + √ cotb/2 +√cotc/2