已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed7053e7021c784f270665cfda8dc29.png)
(1)求
的值
(2)求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed7053e7021c784f270665cfda8dc29.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c72a9f0d0c9a1a036f73f948ca309b2.png)
更新时间:2021-01-17 12:58:03
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解答题-问答题
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解题方法
【推荐1】已知
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【推荐2】已知tan(π+α)=-
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(1)
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(2)
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(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2a327a72bb5dd9cdeda78c07f09e36.png)
(2)
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解答题-问答题
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容易
(0.94)
名校
解题方法
【推荐2】(1)计算: ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2e6d7a7760c8c583be625a50d3821c.png)
(2)已知角α的顶点与原点O重合,始边与x轴的非负半轴重合,它的终边过点
求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2e6d7a7760c8c583be625a50d3821c.png)
(2)已知角α的顶点与原点O重合,始边与x轴的非负半轴重合,它的终边过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c69822bc098540501e4045a3314829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc92810be3e2b2d47adc3edd3d7ebbf.png)
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解答题-问答题
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容易
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【推荐1】在△ABC中,A为锐角,且sinA=
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(1)若AC=5,BC=3,求AB的长;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
(1)若AC=5,BC=3,求AB的长;
(2)若tan(A﹣B)=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
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