解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad292a5e3f68651844e4207b9b594bf.png)
(1)直接写出函数
的零点和不等式
的解集;
(2)直接写出函数
的定义域和值域;
(3)求证:函数
的图象关于点
中心对称;
(4)用单调性定义证明:函数
在区间
上是减函数;
(5)设
,直接写出它的反函数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad292a5e3f68651844e4207b9b594bf.png)
(1)直接写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)直接写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b334e2eaa7e8fb79cef8208b56ee4f5.png)
(4)用单调性定义证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e10140ab3cdc13d710a65b2287c892b.png)
(5)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e313b39064db7bfb103e6215440b19e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc58675aca9c02251a17d4fca67ea5dd.png)
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解题方法
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeccfff03711ca585eb358459dc68107.png)
(1)求证:用单调性定义证明函数
是
上的严格减函数;
(2)已知“函数
的图像关于点
对称”的充要条件是“
对于定义域内任何
恒成立”.试用此结论判断函数
的图像是否存在对称中心,若存在,求出该对称中心的坐标;若不存在,说明理由;
(3)若对任意
,都存在
及实数
,使得
,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeccfff03711ca585eb358459dc68107.png)
(1)求证:用单调性定义证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)已知“函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8319f56cfb802b0e049b4765b5ec79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4003115706a191f2d4415119e73ddaa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9902484b765fe634029040cc5dae6cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8ef8cdf661a9557e490588ef45dcfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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3 . 已知函数
.
(1)定义
,其中
且
,求
;
(2)对于(2)中的
,求证:对于任意
都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2170843053c6714cd98f5a6ad4a0334a.png)
(1)定义
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8803ba7ef10e3204d74a86578d0793f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)对于(2)中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae373255bbe6f55879762cb4098d9094.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
.
(1)求证:
;
(2)若函数
,满足
,则函数
的图象关于点
对称.设函数
,
(ⅰ)求
图象的对称中心
;
(ⅱ)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103c3764db94abea9c034cc62216eaae.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1bedaf3854b48806b82b3b804451cf8.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2592a9eadca4a026a958a419a2cb0ebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d6bb01f1044358cc5fee441bc62489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f206821895b21622e3db36e46c6a998.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
(ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18369d9533bc3c38748aa92a3a04e151.png)
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名校
解题方法
5 . 已知函数
(
且
)在区间
上的最大值与最小值之和为20,记
.
(1)求a的值,并证明:
;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da53929a8f67b9aa3827fdbd73ebd265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602f0dcb6d14064cf4903f3fceed10ff.png)
(1)求a的值,并证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2493344c3e6aa5e038c98ee6d60bb62d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1cdf222081c65e6b545d9342603b508.png)
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名校
解题方法
6 . 已知
,且方程
有两个相等的实根.
(1)求函数
图象的对称中心;
(2)判断
在区间
上的单调性并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b378cff5f7250698df7a66a3496b61f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e44284cb19805a584880a686ac3df9.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7334919736e5ed881f691e4ca738b4ce.png)
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2023-12-24更新
|
118次组卷
|
2卷引用:山西省太原市外国语学校、成成中学校2023-2024学年高一上学期12月质量监测数学试题
名校
解题方法
7 . 已知函数
,满足
.
(1)求a的值,证明:函数
在区间
单调递增;
(2)解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f05520b51d99bb34f2d9eda5bf6e8275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545931b962cf570712d04888b57093f4.png)
(1)求a的值,证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
(2)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ed29d6c64e2c4f6a0c5e9560f9e14e.png)
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解题方法
8 . “函数
的图象关于点
对称”的充要条件是“对于函数
定义域内的任意
,都有
,若函数
的图象关于点
对称,且当
时,
(1)求
的值;
(2)设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6bca97bb7f9c3694541a0c3803107c.png)
①证明函数
的图象关于点
称;
②若对任意
,总存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535c58b5a37a5016bfbde48c15b77a25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77ba8b3cb02c27e2a207a27a5f77701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/094bdef5a5a692a6cb194c8a9fea7266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e66748312d59956072c0cd1bc08b40b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0689085c7c4484df61d0b18d60953f4b.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6bca97bb7f9c3694541a0c3803107c.png)
①证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52fe874d253faa184f61b1a3d7de7fd5.png)
②若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4361b7baf57ec27b60ac4aa637e16a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc4b407d102c2ad9b3278877f4f73a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 我们知道,函数
的图象关于原点成中心对称图形的充要条件是函数
为奇函数.有同学发现可以将其推广为:函数
的图象关于点
成中心对称图形的充要条件是函数
为奇函数.
(1)求函数
图象的对称中心;
(2)若函数
的图象关于点
对称,证明:
;
(3)已知函数
,其中
,若正数
,
满足
,且不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d0969cb7acbeaa05a101a385348a00.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba76aea9da4c2b01f761de20b5733990.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d9667f0dc84f4e0ff0bcc9fdc4e2206.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd2f8c2b6f4e72b9eb836a84cdd3e5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](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/58b645f14176b63dd425178c4fe0061e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d925a16cb4b1d402a4b315533c7baeeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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名校
10 . 设
,若函数
定义域内的任意一个
都满足
,则函数
的图象关于点
对称;反之,若函数
的图象关于点
对称,则函数
定义域内的任意一个
都满足
.已知函数
.
(1)证明:函数
的图象关于点
对称;
(2)已知函数
的图象关于点
对称,当
时,
.若对任意的
,总存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d9667f0dc84f4e0ff0bcc9fdc4e2206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d9667f0dc84f4e0ff0bcc9fdc4e2206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd46c073d3856aa84b3f96ed55182b98.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77b96fc51eb8a9d03ced254ce8b78be.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c7963bb43924328ea04bbd5cbf7f4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4361b7baf57ec27b60ac4aa637e16a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a49684ba67f71171321586f1a77ad4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec32d71e03c7d258e21938389070eec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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