![](http://static.xuejinqu.com/qimg/130/130defa20d4f13b880fd656bfd938c95.png)
![](http://static.xuejinqu.com/qimg/fd1/fd1645c7c3e723bb7e11ef7de80fbe7a.png)
![](http://static.xuejinqu.com/qimg/5e9/5e9b8d4370369183fd006261cb21262b.png)
(1)求证:数列
![](http://static.xuejinqu.com/qimg/5dd/5dd197b7a5f4b85908b7179dd9a50af0.png)
(2)求数列
![](http://static.xuejinqu.com/qimg/130/130defa20d4f13b880fd656bfd938c95.png)
(3)求数列
![](http://static.xuejinqu.com/qimg/130/130defa20d4f13b880fd656bfd938c95.png)
![](http://static.xuejinqu.com/qimg/4f2/4f24e0a828b5192b36176d7c6a5f5aa9.png)
![](http://static.xuejinqu.com/qimg/568/568e082acded228d61746b0f2a8b0d10.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)