Tính giá trị biểu thức :A=
biết tana=3/5...
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Mathematics, 04.06.2020 19:11 charisaramsey
Tính giá trị biểu thức :A=
![\frac{sinacosa}{ {sin}^{2}a - {cos}^{2}a }](/tpl/images/1671/7477/08662.png)
biết tana=3/5
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Answers: 1
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