A. pencil B. pen C. pencil-case D. eraser E. schoolbag F. ruler |
![](https://img./dksih/QBM/2021/8/20/2790349389750272/2791105100791808/STEM/6bdce715d1b549acb30f4445bf4983ba.png?resizew=64)
2.
![](https://img./dksih/QBM/2021/8/20/2790349389750272/2791105100791808/STEM/41b747aea9544019917ee0404b898f98.png?resizew=75)
3.
![](https://img./dksih/QBM/2021/8/20/2790349389750272/2791105100791808/STEM/49e3716f0e56492da690cc432d94c6bd.png?resizew=61)
4.
![](https://img./dksih/QBM/2021/8/20/2790349389750272/2791105100791808/STEM/e7943e8f654b46878994ebee5c1cf042.png?resizew=72)
5.
![](https://img./dksih/QBM/2021/8/20/2790349389750272/2791105100791808/STEM/2be3bce41dc04a6ebc9fb6528992cf91.png?resizew=61)
6.
![](https://img./dksih/QBM/2021/8/20/2790349389750272/2791105100791808/STEM/1fc19efe80194d5eb3b24a1e85507a78.png?resizew=72)
![](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)