![](http://static.xuejinqu.com/qimg/c56/c568baef882d96df154578f0d7c418c4.png)
A: Where do you come from?
B: I come from China.
A: What food do you often have for lunch?
B: I often have rice and vegetables.
1.
![](http://static.xuejinqu.com/qimg/c43/c437ad49b47679bddd0fc942b5e19860.png)
2.
![](http://static.xuejinqu.com/qimg/600/60083623daf5605869d012d0698b01bc.png)
3.
![](http://static.xuejinqu.com/qimg/8df/8df7d1abbd0eae154d44b20ca55ef385.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)