![](https://img./dksih/QBM/editorImg/2023/3/3/39513ddc-3278-4058-b113-6f5b89a1c549.png?resizew=70)
2. sweeping the floor b.
![](https://img./dksih/QBM/editorImg/2023/3/3/65eadecd-4f3f-4d66-b0a5-e4b8aca31003.jpg?resizew=86)
3. doing the dishes c.
![](https://img./dksih/QBM/editorImg/2023/3/3/d3737d7f-ff31-4a0a-b554-0715a74f37ee.png?resizew=74)
4. cleaning the windows d.
![](https://img./dksih/QBM/editorImg/2023/3/3/16c48b37-094b-4075-aa20-651441dad6df.jpg?resizew=79)
![](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)