Let’s have a picnic in the park today!
You are going to play basketball.
I’m going to play chess.
Today is a sunny day.
It is raining.
![](http://static.xuejinqu.com/qimg/01b/01b6f05f9a6a638ca330a43bce8b6c12.png)
![](http://static.xuejinqu.com/qimg/ed8/ed8fe1cc066683b3e6c17e8f7b53d2fe.png)
![](http://static.xuejinqu.com/qimg/58e/58e11f24f74422896802ae083beb9ea3.png)
![](http://static.xuejinqu.com/qimg/dfe/dfe386b3e2ef96ac6a7515519e5ce9f7.png)
![](http://static.xuejinqu.com/qimg/ad8/ad859407257c967682d5a4f6ac863a97.png)
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![](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)