名校
解题方法
1 . 已知函数
.
(1)判断
的奇偶性并证明;
(2)若
,证明:
;
(3)在(2)的条件下,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/855051d4318d683a0bb418773a4fae90.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663b3e55941e6bc451c16ee6bb169a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfe7e301f7eed53dc72afbfa44bc8aed.png)
(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579f25745063790c71ea1cb962a71b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d5d9cae5b616c1a84b26f546f354b62.png)
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解题方法
2 . 已知函数
.
(1)求证:
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0016c875ebc4446e37992424a90e8137.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72da6a31a4eda3f3acce4bf3ee479f7f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d444c36795751b60969de3904b18d6e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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名校
解题方法
3 . 已知定义域为
的函数
是奇函数.
(1)判断
单调性,并用单调性的定义加以证明;
(2)若不等式
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9f333cee2ccb2b215d93011a162f7a.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a79b8a0da3c3dea07b81e7365da5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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23-24高一上·广东深圳·期中
名校
解题方法
4 . 定义在
上的函数
满足如下条件:
①
;
②
;
③当
时,
.
(1)求
,判断函数
的单调性,并证明你的结论;
(2)当
时,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b99994c77cffe78a751636f1dae97e.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c21eedba206cc4392ece6e2f723305.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bf0995f32a13d0a9e423f3e88ab271.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4cbc7b067862a3d9c6789b392fc068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e331fe020af4ef3e3db996460b2fb6.png)
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5 . 已知数列
,满足
且点
在函数
的图像上,且
.
(1)证明:
是等比数列.并求
.
(2)令
,设
的前
项和
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a189f5f230b75af75eed2a5ff0f24b1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69b76612264b62b3e66947e71707ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88aef647186022d30b0e719126d6465.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d8f2f15adae9848373de1ab8c7bc7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74e9c7610cbf2bda17bd7206969fb599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.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/105de1b20942840a12712c6795a05e1b.png)
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名校
解题方法
6 . 在“①函数
是偶函数;②函数
是奇函数.”这两个条件中选择一个补充在下列的横线上,并作答问题.注:如果选择多个条件分别解答,按第一个解答计分.
已知函数
,且______.
(1)求
的解析式;
(2)判断
在
上的单调性,并根据单调性定义证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c13df438b0b4dc65dc054cfc0c2ccc7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e1fcca51be2f5fea9bb06d0146fa50.png)
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7 . 已知数列
中,
,
为等差数列,它的前n项和为
,满足
,
.
(1)求数列
的通项公式;
(2)若
,数列
的前n项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90e9718394f63a9706f0691bd8de13f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0000d271ffbfcb3a52b7b62a5a9d0f8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b717cee9f7a9bde4043bd6cdc439f410.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3203575dca7e5d3233f8e3b5f0d22669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c9267e04f82c22004b155929e387d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5737f1f9cad2471f3ca53241b25a1eb9.png)
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名校
解题方法
8 . 已知函数
.
(1)判断
的奇偶性并证明;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f160226f00c781f63a54b1475d1a8a4e.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37def4ec5e8fe460bda0dd8bc7d1ce3a.png)
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名校
解题方法
9 . 已知数列
的前
项和为
,数列
满足
,
.
(1)证明
是等差数列;
(2)是否存在常数
、
,使得对一切正整数
都有
成立.若存在,求出
、
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa56a61a142de0fa44bce58ab07a3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f20a556ac5f5fb7c7bbfd47d73d140e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1bef6ef8aa7c0932585b18e205d8147.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)是否存在常数
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c0389c763cd9c147ad7e2d956e035b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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名校
10 . 已知a,b均为正实数.
(1)比较
与
的大小并证明;
(2)若
,且
,求实数m的值.
(1)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2b05214c8b22507f0c36b110593d0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5106dbdadcc154f73ee91501ae4d43ff.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ffbece8eaa48d6f874ad33257a0da6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509f3b3c1900fb5a6370964162760a24.png)
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