名校
1 . 如图,以Ox为始边作角
与
(
) ,它们终边分别单位圆相交于点
、
,已知点
的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/f85aca56-2eee-41b8-b6bc-5835e7d606f7.png?resizew=153)
(1)若
,求角
的值;
(2)若
·
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa948cb66784cd5839721537ae85542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802c85f4035559f800af53938aba532e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/f85aca56-2eee-41b8-b6bc-5835e7d606f7.png?resizew=153)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513af47ab640481f8b6b80a9612ff535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82973c2b6d1c407318545f1c0f32ec2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76c951cafae7702febe04473b749cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258f7dd295360a0fa22a811dcffa3ac1.png)
您最近一年使用:0次
2019-06-05更新
|
543次组卷
|
5卷引用:陕西省榆林市第一中学2021-2022学年高一下学期期中理科数学试题