1 . 观察以下等式:
13=12
13+23=(1+2)2
13+23+33=(1+2+3)2
13+23+33+43=(1+2+3+4)2
(1)请用含n的等式归纳猜想出一般性结论,并用数学归纳法加以证明.
(2)设数列{an}的前n项和为Sn,且an=n3+n,求S10.
13=12
13+23=(1+2)2
13+23+33=(1+2+3)2
13+23+33+43=(1+2+3+4)2
(1)请用含n的等式归纳猜想出一般性结论,并用数学归纳法加以证明.
(2)设数列{an}的前n项和为Sn,且an=n3+n,求S10.
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2 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb03b3a9fe5da30c791ce4abcecf02b.png)
.
(1)化简:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84596f2f873602967ac204a0921b601.png)
;
(2)已知:
,求
的表达式;
(3)
,请用数学归纳法证明不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb03b3a9fe5da30c791ce4abcecf02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfe0778f3d1edc7756a4b8c51e5c1bc.png)
(1)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84596f2f873602967ac204a0921b601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfe0778f3d1edc7756a4b8c51e5c1bc.png)
(2)已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcda62e52eed905e59881e926996935d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681ae1522a36768618f7ddaf74abbb7e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb10cebd5e38daaf05305bdcf68b8d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632dfb2eef3413e17ea5f12b0a7ecece.png)
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3 . 用数学归纳法证明等式
,在验证
成立时,左边需计算的项是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eace12249bdbd18d9149d4203c1784ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-09-06更新
|
386次组卷
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3卷引用:福建省莆田第一中学2018-2019学年高二下学期期中数学(理)试题
名校
4 . 用数学归纳法证明不等式“
(
且
)”的过程中,第一步:当
时,不等式左边应等于__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37af33fd390363b6db9be9c33c9d0377.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2d3df37e73a8abea815f37dbb3fff5.png)
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5 . 已知函数
.
证明:
;
已知
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e64df9abaf7b6ec82bab42139348f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be61e0dd72a9cf9713e9367377e16223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad662afe32f5c6404501f4a1b84bd68e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61223cf5c1e46dc3f063f9ea2d1987a.png)
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2019-07-17更新
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413次组卷
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2卷引用:重庆市南开中学2018-2019学年高2020级高二下学期期末数学(理)试题
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6 . 已知函数
在
处的切线的斜率为1.
(1)求
的值及
的最大值;
(2)用数学归纳法证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01edd5a9e2b0de35bc4ca82668325b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)用数学归纳法证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee86ba92344c88e952e1da9c59fdf12.png)
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2019-07-16更新
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611次组卷
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2卷引用:陕西省榆林市第二中学2018-2019学年高二下学期期末考试数学(理)试题
7 . 用数学归纳法证明不等式:
,则从
到
时,左边应添加的项为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a98967c754150196f88d530cdff1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef7ca2b3e8061384501f668e59696a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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8 . 已知数列
满足
,且
.
(Ⅰ)求
,
的值;
(Ⅱ)是否存在实数
,
,使得
,对任意正整数
恒成立?若存在,求出实数
、
的值并证明你的结论;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a61e435e639c6491603a5e94b3a17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
(Ⅱ)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14240403dc63352209dc8e0eb28d6ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2019-07-11更新
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413次组卷
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2卷引用:江苏省无锡市普通高中2018-2019学年高二下学期期末数学(理)试题
9 . 已知数列
各项均为正数,
,
,
.
(1)若
,
①求
的值;
②猜想数列
的通项公式
,并用数学归纳法证明;
(2)若
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120fd19b9e64b7dde22bd87b426bf7b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed529240a883f68f0921e818addeb9c8.png)
②猜想数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e64f8ad1bee7edb4a9e2cd8fef8e605.png)
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10 . 用数学归纳法证明
,在第二步证明从
到
成立时,左边增加的项数是_____ 项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/807e740d5b0b69f075a419359803c091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef7ca2b3e8061384501f668e59696a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
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2019-07-05更新
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3卷引用:湖北省黄冈市黄州区2017-2018学年高二下学期期末数学试题
湖北省黄冈市黄州区2017-2018学年高二下学期期末数学试题(已下线)第四章 数列(提高卷)-《阳光测评》2020-2021学年高二数学单元提升卷(人教A版2019选择性必修第二册)沪教版(2020) 选修第一册 新课改一课一练 第4章 4.4.1 数学归纳法