已知数列
满足条件
,且
,
(1)计算
、
、
,请猜测数列{an}的通项公式并用数学归纳法证明;
(2)设
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687395a906ff221e20877e69cd1e97de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7def23f30138e0b7c4c1e498d6903a6c.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211c9b9d81f5455a337c8c2e738c4730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5426b6af777f743ff8ffcf0200039d87.png)
更新时间:2020-03-07 16:39:37
|
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(Ⅰ)证明
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(Ⅱ)求数列
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(Ⅲ)记
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f13d75d502d6b2d5fc390f47a5aee5a.png)
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(Ⅰ)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31a493c880f55e1373698414863a9c3.png)
(Ⅱ)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(Ⅲ)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0cbe3ed1f5d5094cd1815b475b7a854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34354699fc8ecabaf3e71a27cf58a235.png)
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【推荐2】已知数列
的前
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,且
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设
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,数列
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,求整数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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【推荐2】已知数列
满足
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e3d3b1bff94d539b712df424554ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc1d31c31c65f8b94214dcac368ad9c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
(2)猜想数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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