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在△ABC中,∠C=90°,tanA=1,则sinB的值是( )
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在Rt△ABC中∠C=90°下列各式中正确的是
sinA=sinB
tanA=tanB
sinA=cosB
cosA=cosB
填空在△ABC中∠C=90°tanA=1则sinB的值是.
如图在△ABC中CD⊥AB垂足为D.若AB=12CD=6tanA=求sinB+cosB的值.
在△ABC中∠C.=90°若tanA=则sinB=
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如图在△ABC中∠C.=90°AC=2BC=1则tanA的值是.
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.
如图在△ABC中CD⊥AB垂足为D.若AB=12CD=6tanA=求sinB+cosB的值.
如图在△ABC中∠C=90°AC=2BC=1则tanA的值是.
如图在△ABC中∠C.=90°AC=2BC=1则tanA的值是
在RtABC中∠C.=90°sinB=则tanA的值为
△ABC中∠C=90°sinA=.求1cosA2sinB3tanA4cotB.
在△ABC中∠C=90°tanA=则sinBcosBtanB中最小的是
tanB
sinB
cosB
sinB或cosB
在△ABC中∠C=90°若tanA=则sinB=.
在Rt△ABC中∠C.=90°tanA=则sinB.=.
在Rt△ABC中∠C=90°下列各式中正确的是.
sinA=sinB
tanA=tanB
sinA=cosB
cosA=cosB
在△ABC中∠C.=90°如果tanA=那么sinB的值等于
在Rt△ABC中∠C.=90°下列式子不一定成立的是.
tanA=cotB
tanAcotB=1
(sinA)+(cosA)=1 (
)(sinA)+(sinB)=1
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