名校
1 . 已知角
的顶点在原点,始边与x轴的非负半轴重合,终边经过点
,且
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c68fc61e53a02319cf1999b9b3ee8939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8243953e45f9db416d64b444b259b02b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7b915277169254e670ea51b693b9fc.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2c23496182da076d48e54518555fba.png)
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解题方法
2 . 已知
.
(1)求
的值.
(2)求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536e072eb0439a5e5b430cd55a129374.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c684f5c1cfb58c8729fbc075cee649.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a478e03877fd76050b8af0bf205d0e8c.png)
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3 . 解答以下两个小题:
(1)求
的值;
(2)若
,求
的值.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6306f753fe8458efe5cf9887b64c4422.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8c9f990fc696c4b27d02cb9e92fe9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c1f68a5bc3695f488c3c9249ac77ea.png)
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4 . 计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1dc7e3ccd1257b3a60a6e79ee40009a.png)
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5 . (1)化简:
;
(2)求方程
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef937ff3d3939ec00c2ccb3ad9a13848.png)
(2)求方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67bd4a53ea5aef1fb7aeabddbf4adb64.png)
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6 . (1)计算:
;
(2)已知
(
),求x.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aebcbafe36803c16ae2650e02885239a.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9db9d99b83bab89b207e9fc20f6e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73c6b42f12d065a17923045f44d4ca4.png)
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7 . (1)求值:
;
(2)设
,
,试用
,
表示
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfb82006cc59515cd0d628ac2c4f851.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a08a2a5540efcdb5a77aa4ea3049884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850df3e299d9b1ecbda7e3a59e2a255e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf842a975fc4eb344d3ec356854ceb8.png)
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8 . 在平面直角坐标系中,角
的顶点为坐标原点,始边为
的非负半轴,终边经过点
.
(1)求
与
的值:
(2)求
的值.
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cf818dd484cc4cebd40a5f28eb8e9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac02f345bcdadd676da7347d7f4c3a9.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155a98ed36f52e4bb266cdd915d805a1.png)
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9 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8da2b31b4d8c7ef16c218d6d23cc534.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20856e9f876a3793bd2a56627a88cc63.png)
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解题方法
10 . 已知
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e19eeebf9f6d50356a71b171981d3f3.png)
(1)求
的值;
(2)求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f201f6e84279e80b85f394f4d930ed41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e19eeebf9f6d50356a71b171981d3f3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c0aa645bd286812cacd3797dd4b4cd.png)
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