A. Good evening. B. How are you? C. Goodbye. D. Good night.
1.
![](http://static.xuejinqu.com/qimg/3a2/3a24f8015cac73979c4474b3f0c0a784.png)
2.
![](http://static.xuejinqu.com/qimg/8f8/8f8286b07bf49a4e6cbeaf92f22a5897.png)
3.
![](http://static.xuejinqu.com/qimg/6e9/6e92029af84acf64949770d572837fee.png)
4.
![](http://static.xuejinqu.com/qimg/dcc/dccf24e09016f4a1f41bf02e2ebc900c.png)
![](http://static.xuejinqu.com/images/y-prise.png)
同类型试题
![](http://static.xuejinqu.com/images/medal.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)