题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061442-97348.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061442-80166.gif)
⑴求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061442-97348.gif)
⑵若数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061443-19863.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061443-55930.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061443-14817.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061443-35334.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061443-57951.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061444-26259.gif)
⑵
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061444-31759.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061444-14870.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061444-17323.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061442-97348.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061445-19741.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061445-70536.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061445-60073.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061444-26259.gif)
⑵
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061445-14368.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061445-68874.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061445-60073.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061446-65558.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061445-60073.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061446-28182.gif)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061446-25058.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061444-31759.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061444-14870.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061444-17323.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061432-56359.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061432-80649.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061433-19676.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061433-46794.gif)
⑴当
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061433-19676.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061432-56359.gif)
⑵求
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061433-40667.gif)
⑶求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061433-30445.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061433-19676.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061434-49633.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061353-45707.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061353-97497.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061353-50543.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061354-74773.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061353-50543.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061354-72005.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061354-31177.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061354-50595.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061353-50543.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061354-85370.gif)
已知数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061354-72005.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061355-80808.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061354-72005.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061345-83722.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061346-59337.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061345-83722.gif)
⑵已知数列
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061345-83722.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061346-48511.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061345-83722.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061339-79584.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061339-14741.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061339-79584.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061332-11345.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061332-48102.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061332-61686.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061332-50823.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061332-38393.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061333-97518.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061333-88079.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061333-17351.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191013/20191013061333-87335.gif)
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