![](http://static.xuejinqu.com/qimg/f12/f12e5debd820ba5d253ac8579b39eeea.png)
![](http://static.xuejinqu.com/qimg/eda/edabf1e783825c30da218c8af9a151c3.png)
![](http://static.xuejinqu.com/qimg/774/774cfa9f742e85ed6b1622e595dbd622.png)
![](http://static.xuejinqu.com/qimg/0f1/0f1fb621e4cc0d3ceefb3c0707378af5.png)
![](http://static.xuejinqu.com/qimg/1e6/1e645d2008850751a41d03e79bdcc40c.png)
(1)电源电压的大小;
(2)电阻
![](http://static.xuejinqu.com/qimg/5bd/5bd1630a94d5ba57d327faed084205ba.png)
![](http://static.xuejinqu.com/qimg/999/999869d1ec355f72493d008eaf1130d2.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)