名校
解题方法
1 . 已知
,
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fdec18642892e189c93a15b0d91cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d8ad292f19e2dfd916088847fb85297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fc75c1794289a311fb6055877cee4f.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2021-10-09更新
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616次组卷
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7卷引用:黑龙江省绥化市绥棱县第一中学2022-2023学年高二下学期期末数学试题
名校
2 . 如图,在直角坐标系
中,角
的顶点是原点,始边与
轴正半轴重合,终边交单位圆于点
,且
.将角
的终边按逆时针方向旋转
,交单位圆于点
.记
.
![](https://img.xkw.com/dksih/QBM/2019/9/2/2282083453345792/2285664564445184/STEM/d604da6cc2a44f70b6d33222de6180b6.png?resizew=209)
(1)若
,求
;
(2)分别过
作
轴的垂线,垂足依次为
.记
的面积为
,
的面积为
.若
,求角
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11afee90cb68b244290bdc1d6a0642eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec3f0349a972389b6b799a2f10c76ff.png)
![](https://img.xkw.com/dksih/QBM/2019/9/2/2282083453345792/2285664564445184/STEM/d604da6cc2a44f70b6d33222de6180b6.png?resizew=209)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/865afa1f97658d54e0616094b6a6aee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(2)分别过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3304bc1372275307dce0bf4e98b8f3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0574e32fad19571c0a9c9fcf839094ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8060a00d925f27135a7baff2d0e9d598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2019-09-07更新
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3卷引用:黑龙江省哈尔滨师范大学青冈实验中学校2019-2020学年高三10月月考数学(理)试题