已知
,且
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c87874458fabe50aff5e19d586d5d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c4266f962def23c1dc0bd66a502912.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8aaf830ba8ed8a772923d908ee966e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f41c0524e6eacd9b1f1e5c628a65d7.png)
2022高三·全国·专题练习 查看更多[2]
更新时间:2021-10-10 21:13:19
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解答题-问答题
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适中
(0.65)
名校
【推荐1】(1)已知
,求
的值.
(2)求
的值.
(3)已知
=
且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d59142ab797807e560fe8adf63e6ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c95880324aca9202bcd4e9ff737440b.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2238b994e2b616c50691294a43d0e91.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617e59c1afb7dc761f5b373bc820ecff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb27b87a8f0a768c94664131a4fdfe3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7aee715ac87a76f7a00996af77481ed.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐2】已知在
中,
.
(I)求
;
(II)判断
是锐角三角形还是钝角三角形;
(III)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e6c9c9e4a7a59fe67e64ccadaaca33.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328f4d3a80a80e08c3fd6544eadcb98f.png)
(II)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
(III)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐1】已知
,且
.
(1)求
值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a51e057aec26712c447186fb3f0eae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b4858dab7b2b5f596ac2a2d95a803e.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知:sinα+cosα=
,α∈(π,2π).
(1)求sinα﹣cosα的值;
(2)求tanα,tan
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求sinα﹣cosα的值;
(2)求tanα,tan
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0e27121a582de019f7d539dbd95114.png)
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