名校
1 . 已知数列
满足:
,且对任意
,都有
.
(1)直接写出
的值;
(2)猜想
的通项公式,并用数学归纳法证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b807f31d58c3b31aa80aeab333aac95.png)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed529240a883f68f0921e818addeb9c8.png)
(2)猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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2 . 用数学归纳法证明“
”的过程中,从
到
时,左边增加的项数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc0dfae24a9d5e405673a131b120927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4144cc65da072c3f9e149c1d524369a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023高二上·江苏·专题练习
3 . 设数列
满足
,
.
(1)计算
,猜想
的通项公式;
(2)用数学归纳法证明上述猜想,并求
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6672b832da87660e7919ea3f7d50bf0f.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe61d313eeca8ba47478a9de40540db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)用数学归纳法证明上述猜想,并求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2023高二上·江苏·专题练习
4 . 利用数学归纳法证明“
”时,由
到
时,左边应添加因式__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f716858a6bb27117518863575c4bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b00f4eb7f1bd2ccefbabf0c1dfa8f69.png)
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5 . 以下四个命题,其中满足“假设当
时命题成立,则当
时命题也成立”,但不满足“当
(
是题中给定的n的初始值)时命题成立”的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/469410cf8d7cd28620a58363cb5cbb6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ca4f2b82d9d7a8323c8d697338a6a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7e9f86738335a22298559db41037a4.png)
A.![]() |
B.![]() |
C.凸n边形的内角和为![]() |
D.凸n边形的对角线条数![]() |
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2023高二上·江苏·专题练习
6 . 已知数列
满足
,
.给出下列四个结论:
①数列
每一项
都满足
;
②数列
是递减数列;
③数列
的前
项和
;
④数列
每一项都满足
成立.
其中,所有正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35becfccb4eee2d53a0c92865ebb9b43.png)
①数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd8ee21c9df773cac3417b0a29af1994.png)
②数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
③数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94351ce858fa3f3a09cfadc2d23d7253.png)
④数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff1c4afd5d0ae01ea180a2e61fe51cef.png)
其中,所有正确结论的序号是( )
A.①② | B.①③ |
C.①②③ | D.①②④ |
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名校
7 . 已知定义域为
的函数
同时满足:
①对于任意的
,总有
;
②若
,
,
,则有
;③
;
以下命题中正确的命题的序号为__________ .(请写出所有正确的命题的序号)
(1)
;
(2)函数
的最大值为
;
(3)函数
对一切实数
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12aae852c3129efc16934aefc54201f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cd2fe62ffe3caa1c6f7976851c9dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2f51cd760aeff9365b51e9a85b41e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a55141a7ecd250e67d1228bdc3a1c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
以下命题中正确的命题的序号为
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01bea8bf593f594c51fc7cc547482bee.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d3c756a52c9185ae6d02d9b9312f29.png)
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名校
解题方法
8 . 已知数列
满足
,
,
是其前n项和.
(1)计算
,
,并猜想
的通项公式,用数学归纳法证明;
(2)记
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ec6b904bcb377349b4bf675acb01b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee26dcc81018cd00f2d6956fb85be7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e5087b65850c79e65452645719f176b.png)
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9 . 判断正误:
(1)与正整数
有关的数学命题的证明只能用数学归纳法.( )
(2)数学归纳法的第一步
的初始值一定为1.( )
(3)数学归纳法的两个步骤缺一不可.( )
(4)在证明与正奇数有关命题时,用数学归纳法证明时第二步是
(
为正奇数)时命题成立,推证
时命题成立.( )
(1)与正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)数学归纳法的第一步
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7e9f86738335a22298559db41037a4.png)
(3)数学归纳法的两个步骤缺一不可.
(4)在证明与正奇数有关命题时,用数学归纳法证明时第二步是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef7ca2b3e8061384501f668e59696a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f832b79a16cb7748ccb36d1227bde34.png)
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10 . 已知函数
,设
,且任意的
,有
.
(1)求
的值;
(2)试猜想
的解析式,并用数学归纳法给出证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e0231115004a544dcc129026212342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6855784817151468771f29c0fc38fc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5454f25ef2b0a765adb51e7c37897706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a77f594bc5c040440dafb7d54c3f74.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e565b629c1cde32e9b627ef6b954d4.png)
(2)试猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4fc8faefb26b233d4aa9dbef043aae.png)
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2023-12-18更新
|
174次组卷
|
6卷引用:人教A版(2019) 选修第二册 数学奇书 第四章 数列 4.4 数学归纳法
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