已知
,
为等差数列
的图象上的两点.
(1)求数列
的通项公式;
(2)画出数列
的图象;
(3)判断数列
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929a5a2d5fdcb44684f2408a251f1e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ea9c86a4cc05d5c95c134edb874e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)画出数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)判断数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
23-24高二上·全国·课后作业 查看更多[3]
(已下线)1.2 等差数列湘教版(2019)选择性必修第一册课本习题1.2 等差数列(已下线)5.2.1等差数列(分层练习,9大题型)-2023-2024学年高二数学同步精品课堂(人教B版2019选择性必修第三册)
更新时间:2023-09-12 10:19:12
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解题方法
【推荐2】等差数列
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2b5232a2319db7fa5d18baf85e3dd6.png)
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【推荐2】设数列
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e661ad31aa4c6d8684923cf904bf1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd8e8956713d6588b9e7ecff3c8aea0.png)
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