1.
![](http://static.xuejinqu.com/qimg/3a0/3a0182506e3f74e4d98ceb12b45d04d1.png)
![](http://static.xuejinqu.com/qimg/daf/daf2a130050e26d26a8af86f9d60d6b1.png)
3.
![](http://static.xuejinqu.com/qimg/ddf/ddf25451501a59ab1c321b763e85fba6.png)
![](http://static.xuejinqu.com/qimg/0e8/0e8f83a8c5b886ba7f3aa0f09969f976.png)
A.fur | B.pollute | C.cut down | D.medicine |
![](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)