在平面直角坐标系
中,已知角
的顶点在坐标原点,始边与
轴的非负半轴重合,终边经过一点
.
(1)若
,求
的值;
(2)若
且
,求
的单调增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/159cee4c6a18163601ff249fafde685d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15a13b4190ac3d5feaee27a4c97b21b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a364ddc8b0f2831eaf40ef3f851210.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79a0699c36fa6f2de4d9a68d2e133f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20503958558c0069656925d00246e50a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba8cb2e8f98ea73c1d09739276da5f1.png)
2020·江苏·二模 查看更多[2]
更新时间:2020-05-16 19:40:23
|
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