在平面直角坐标系
中,角
的终边与单位圆交于点
,求下列各式的值.
(1)
;
(2)
.
![](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/87198dc8d9b8b3e5fe78aa2cb8695ab3.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88cb540788e5e8a204795e7465003d24.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ced32ad425c50b88c57ae335e04245.png)
更新时间:2022-11-14 19:14:58
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/14/a9eb7f07-e55a-4de2-b786-eb1607f0894b.png?resizew=142)
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