已知数列
满足
,
.
(1)若
,证明:
;
(2)若
,记
,问:是否存在常数
,使得
对
均成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e2e151b42e280f13387ef73deba9ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4283482aa4e821c3df859d6ea6bf996f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ba2f6567edefd144860dbaac7bbea2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448b911867fb430c21aa842caa555b6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ef124353a6e8f7a699086e5fd8e329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
更新时间:2020-02-13 22:54:32
|
相似题推荐
【推荐1】在数列
中,
.
(1)求
的通项公式;
(2)设
,数列
的前
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.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40aeede4e7bdfaf3eb8aa732c02e70c4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7adbc719a2c6f5a379141bfeab45bd9.png)
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您最近一年使用:0次
【推荐2】已知数列
满足
,
,
,
.
(Ⅰ)求证:数列
为等差数列;
(Ⅱ)设数列
的前
项和
.证明:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42162d21f041e1fa9df1f583d80a2ebe.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac69e6db1df13ed64756b4f391ae9fac.png)
(Ⅰ)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0cab513667aaae70e590ba73efff7dc.png)
(Ⅱ)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b2286a94a516e6a2fb45329a772fd4.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/e8695875aded32578fcc9a86177b1ea6.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】在教材中,我们已研究出如下结论:平面内
条直线最多可将平面分成
个部分.现探究:空间内
个平面最多可将空间分成多少个部分,
.设空间内
个平面最多可将空间分成
个部分.
(1)求
的值;
(2)用数学归纳法证明此结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d4f3be14a2996f9c07a79e09c4d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1933b7c3ace69622339353431c519b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1017ab58675c36b42c6e614c8417d891.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ace74bfb716753490ebe0e740ff5baa.png)
(2)用数学归纳法证明此结论.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知数列
的通项公式是
,记![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1b251d76b479ace9ca7d151fd90483.png)
(1)写出数列
的前三项;
(2)猜想数列
通项公式,并用数学归纳法加以证明;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4ba12b58b106785c1178970cce8fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1b251d76b479ace9ca7d151fd90483.png)
(1)写出数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)猜想数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7957cd2065152a0e7349435ffdee9612.png)
您最近一年使用:0次