名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5b1b284b07c677b9dc5359929513bf.png)
(1)讨论
的单调性;
(2)证明:
(
为自然对数的底数,
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5b1b284b07c677b9dc5359929513bf.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b44f604dcf8785a257379a315c2462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dcd143a57a268a5a8ef486e2a4d5c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209591cfb9f8271f5ad48d89f214f22e.png)
您最近一年使用:0次
2022-11-23更新
|
803次组卷
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5卷引用:安徽省合肥市第一中学2022-2023学年高三上学期11月月考数学试题
安徽省合肥市第一中学2022-2023学年高三上学期11月月考数学试题(已下线)专题05 数列放缩(精讲精练)-2广西南宁市第三中学2023届高三模拟(三)数学(理)试题广西壮族自治区南宁市第三中学2023届高三模拟数学(理)试题(二)(已下线)期末押题预测卷02(范围:选择性必修第一册、选择性必修第二册)-【单元测试】2022-2023学年高二数学分层训练AB卷(人教A版2019)
名校
解题方法
2 . 已知等比数列
的公比
,且
,设数列
的前
项和为
.
(1)证明:
;
(2)若
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae99e050d0f1cfc0447304f06424d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f702986cba405635546481e8e140cb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5737f1f9cad2471f3ca53241b25a1eb9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a48524135c5261df1d869c8ee2ec7e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
2022-04-01更新
|
686次组卷
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6卷引用:安徽省合肥市肥东县第二中学2021届高三下学期4月月考理科数学试题