已知数列
前
项和为
,且
,
,等差数列
满足:
,
.
(1)求数列
,
的通项公式;
(2)设
,证明:
,
.
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204fe825361c413ddc828c5505476789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f46ffd7c09661470493ec45f22e007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a47899a72787c1948d5a7424ea901e7b.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd41f7ebef87f64bba8f6682caed7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed2a1a6fe0536c0ce56d7cc76c2a9b4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
2021·浙江绍兴·三模 查看更多[5]
浙江省绍兴市柯桥区2021届高三下学期5月高考及选考科目适应性考试数学试题(已下线)【新东方】 【2021.5.19】【SX】【高三下】【高中数学】【SX00121】(已下线)专题7.22 数列大题(证明不等式2)-2022届高三数学一轮复习精讲精练(已下线)专题6.数列与数学归纳法 -《2022届复习必备-2021届浙江省高考冲刺数学试卷分项解析》浙江省杭州市临安中学2022届高三下学期高考模拟数学试题
更新时间:2021-05-11 12:39:21
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【推荐1】已知数列
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【推荐2】已知
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