A. Yes, it is. B. No, it isn’t. |
![](https://img./dksih/QBM/2021/9/7/2802949080621056/2803272527544320/STEM/fc4b5848ee834f99a26b78ef5e365bed.png?resizew=141)
![](https://img./dksih/QBM/2021/9/7/2802949080621056/2803272527544320/STEM/3642dad477be4f35bf0017d586e5bf57.png?resizew=62)
![](https://img./dksih/QBM/2021/9/7/2802949080621056/2803272527544320/STEM/618807579b644519835a8da9627d66bb.png?resizew=100)
![](https://img./dksih/QBM/2021/9/7/2802949080621056/2803272527544320/STEM/a203dc5e279445b593dc48fa5389a1a3.png?resizew=79)
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同类型试题
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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)