在Rt△ABC中，若∠C=90°，cosA=725，则sinA的值为（）_刷题宝

题干

在Rt△ABC中，若∠C=90°，cosA=25

7

，则sinA的值为（）

A： $\frac{24}{25}$

B： $\frac{7}{24}$

C： $\frac{7}{25}$

D： $\frac{25}{24}$

上一题下一题 0.0难度选择题更新时间:2019-01-02 12:11:02

答案(点此获取答案解析）

A

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