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在Rt△ABC中，∠C=90°，sinA=，则tanB的值为（ ）
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已知Rt△ABC∠C＝90°若∠A＞∠B则下列选项正确的是
sinA＜sinB
cosA＜cosB
tanA＜tanB
sinA＜cosA
在Rt△ABC中∠C=90°下列各式中正确的是
sinA=sinB
tanA=tanB
sinA=cosB
cosA=cosB
在Rt△ABC中∠C=90°则下列各式①sinA=1-cosA②sinA=tanA·cosA③tan
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已知在Rt△ABC中∠C=90°sinA=则tanB的值为．
在Rt△ABC中∠C=90°则下列式子成立的是
sinA=sinB
cosA=sinB
tanA=tanB
sinA=tanB
在Rt△ABC中∠C.=90°a=3c=5求sinA.和tanA.的值.
已知在Rt△ABC中∠C.=90°sinA=则tanB的值为.
已知在Rt△ABC中∠C=90°sinA=则tanB的值为．
如图所示在Rt△ABC中∠C=90°AB=10sinA=求BC的长和tanB的值．
在Rt△ABC中∠C=90°则下列式子成立的是
sinA=sinB
sinA=cosB
tanA=tanB
cosA=tanB
已知在Rt△ABC中∠C.=90°sinA=则tanB的值为
已知在Rt△ABC中∠C=90°sinA=则tanB的值为．
已知在RtABC中∠C=90°sinA=则tanB的值为．
在Rt△ABC中∠C=90°已知cosA=请你求出sinAtanB的值．
已知在Rt△ABC中∠C.=90°sinA=则tanB的值为.
已知在Rt△ABC中∠C=90°sinA=则tanB的值为.
已知在Rt△ABC中∠C=90°sinA=则tanB的值为．
已知在Rt△ABC中∠C=90°sinA=则tanB的值为．
在Rt△ABC中∠C=90°sinA=则tanB的值为．
在Rt△ABC中∠C=90°下列各式中正确的是．
sinA=sinB
tanA=tanB
sinA=cosB
cosA=cosB
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