在Rt△ABC中，∠C=90°，如果sinA＝，则tanB= 。A．B．C．D．

在Rt△ABC中，∠C=90°，如果sinA＝

，则tanB=" " 。

A．

B．

C．

D．

答案

D解析:
略

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在Rt△ABC中，∠C=90°，如果sinA＝，则tanB= 。A．B．C．D．

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