解题方法
1 . 已知函数
是定义在
上的奇函数,当
时,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/80094478-dac5-4855-bcd9-eb560c801525.png?resizew=175)
(1)画出函数
的图象,并写出
的单调区间;
(2)求出
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c6c39a23561a8042b2c56102b63df6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/80094478-dac5-4855-bcd9-eb560c801525.png?resizew=175)
(1)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
您最近一年使用:0次
2 . 如图,给出函数
的部分图象.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/11/b4ae34aa-0fdb-4eec-bca3-d295c8fafee1.png?resizew=161)
(1)请在图中同一坐标系内画出函数
的图象.设
与
在
轴左边的交点为
,试用二分法求出
的横坐标
的近似解(精确度为0.3);
(2)用
表示
,
中的较大者,记为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4ed159e3b82a2f8131c99117ee70e0.png)
,请写出
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/11/b4ae34aa-0fdb-4eec-bca3-d295c8fafee1.png?resizew=161)
(1)请在图中同一坐标系内画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/557eb194cf0abe382609f8e1325b4197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(2)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531bcdb6324cb5a759301daddf9768c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4ed159e3b82a2f8131c99117ee70e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3682b41be6fbf083088212c1c6ffa7ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531bcdb6324cb5a759301daddf9768c0.png)
您最近一年使用:0次
解题方法
3 . 已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/9/ec8b77db-cba8-4da5-938a-4c167cbd410c.png?resizew=206)
(1)作出函数
在
的图象;
(2)求方程
的所有实数根的和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822782bcd1ee69ebb6a22d3037e957bd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/9/ec8b77db-cba8-4da5-938a-4c167cbd410c.png?resizew=206)
(1)作出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e0e5731036a0d9c3109c541e126d78.png)
(2)求方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ab8321b0ca5b130501f2a1fcc5daaa.png)
您最近一年使用:0次
解题方法
4 . 已知函数
的图象无限接近直线
但又不与该直线相交.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/f9361a04-ad71-4cdb-b3e1-356127d4f498.png?resizew=243)
(1)求函数
的解析式,并画出图象;
(2)若
(
且
),求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f158257bf0270920a5eed6548bea477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/f9361a04-ad71-4cdb-b3e1-356127d4f498.png?resizew=243)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02eee0d5a4ce3c292819a14a5ae9a630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e7930731eddbcfac592b808e9b698.png)
您最近一年使用:0次
5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868bf036ac8e86303ecf9da160931fff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/4cbe23ad-885d-49eb-ab7f-c5899bce7837.png?resizew=242)
(1)在如图所给的平面直角坐标系中画出该函数的图象;
(2)写出函数
的单调增区间及零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868bf036ac8e86303ecf9da160931fff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/4cbe23ad-885d-49eb-ab7f-c5899bce7837.png?resizew=242)
(1)在如图所给的平面直角坐标系中画出该函数的图象;
(2)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
6 . 已知函数
.
(1)填写下表,并画出
在
上的图象;
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32f25c3e8b58eed9559d77527589af8.png)
(1)填写下表,并画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4b61d912f99e5583e7e17cf8fef558.png)
0 | ||||||
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
您最近一年使用:0次
名校
7 . 已知函数
.
在
上的图象;
(2)将
的图象横坐标扩大为原来的2倍,再向左平移
个单位后,得到
的图象,求
的对称中心.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54224b6cf4740eb1e482055744689615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
x | 0 | |||||
1 | 0 |
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次
名校
8 . 已知函数
.
在
上的图象;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c72f6893aed4930cd638c2e8d67a361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c195698ac387fe53b3b1e0248a1fcc92.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705e64c6f20c5ba1bfeeb92eb2a31b04.png)
您最近一年使用:0次
9 . 设函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/3/069751d0-d183-4db6-bda1-d936ef131f93.png?resizew=170)
(1)在平面直角坐标系中画出它的图象;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24438824d475f58a8ddcc0e05b599468.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/3/069751d0-d183-4db6-bda1-d936ef131f93.png?resizew=170)
(1)在平面直角坐标系中画出它的图象;
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dd18467feea8eb478f4669a32c2d57.png)
您最近一年使用:0次
名校
解题方法
10 . 已知
为
上的偶函数,当
时,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/bd7cd8e9-a545-4eb6-b9f0-2d1e0fb58312.png?resizew=204)
(1)求出
时
的解析式,并作出
的图象;
(2)根据图象,写出
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66062dbd4978a7bb2fb9b9aabb898af.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/bd7cd8e9-a545-4eb6-b9f0-2d1e0fb58312.png?resizew=204)
(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)根据图象,写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626e7cfbc3e744761cdd3668ac733b9b.png)
您最近一年使用:0次