1.woman
![](http://static.xuejinqu.com/qimg/eaf/eaf9bdf1fd476568a34010c887c0fd8b.png)
2.father
![](http://static.xuejinqu.com/qimg/92f/92f6e3cbbfdfb7cdf6ab0378d2fa72c8.png)
3.man
![](http://static.xuejinqu.com/qimg/3e7/3e7b40d7e0c5cecf121c0a4d5a17567d.png)
4.mum
![](http://static.xuejinqu.com/qimg/f7c/f7c2a93e27974aad68eaa13e1b5ec0d5.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)