名校
解题方法
1 . 如图,在平面直角坐标系
中,以
轴正半轴为始边的锐角
的终边与单位圆
交于点
,且点
的纵坐标是
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/4dd89ab0-e477-4903-8d90-d12d40dca233.png?resizew=153)
(1)求
的值:
(2)若以
轴正半轴为始边的钝角
的终边与单位圆
交于点
,且点
的横坐标为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83fb9ac8a18e78a4c56da79514b5ccb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/4dd89ab0-e477-4903-8d90-d12d40dca233.png?resizew=153)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed83bff03f947be061fd5681535e0058.png)
(2)若以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71d141e18938319cc05063d29c111557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
您最近一年使用:0次
2020-03-18更新
|
937次组卷
|
4卷引用:甘肃省兰州大学附属中学2021-2022学年高三上学期第三次月考理科数学试题
甘肃省兰州大学附属中学2021-2022学年高三上学期第三次月考理科数学试题江苏省南京师范大学附属中学江宁分校2019-2020学年高三上学期12月调研考试数学(文)试题2019届江苏省南京师大附中高三下学期5月模拟数学试题(已下线)专题13+简单的三角恒等变换(基础练)-2020-2021学年高一数学十分钟同步课堂专练(人教A版必修4)