解题方法
1 . 已知
是奇函数,且在
内是减函数,又
,则
的解集是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86213096e8b50debedaa87181d7085cc.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2 . 已知函数
,如果关于
的方程
恰有6个不同的实数根,则下列说法一定正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d5529c4cd422853d5f7244414c7d8e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a877ab9d6a59eca86bf22e811553928c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 在
这四个函数中,当
时,使
恒成立的函数的个数是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4beff09ffe9f8b635bb0b6d4f347cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5d446b3dccbaece77ce7308ee8fb0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c57efa20c90b7962f9444e7666a12288.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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解题方法
4 . 已知函数
的定义域为
,对任意的
,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274c8d81c4c746222a2b904812872bf0.png)
成立,则函数
的奇偶性是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd423a80d5b6fea8753fa1813cfbcc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274c8d81c4c746222a2b904812872bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a03c24a03a215d5df388b1e27e396f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
A.既奇又偶 | B.非奇非偶 | C.奇非偶 | D.偶非奇 |
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解题方法
5 . 已知函数
是
上的奇函数,且在区间
上单调递增,若
,
,
,则( ).
![](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/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3cda656c1084d6b1c720b7483c2a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8275b1e89c98e9fb2f3b594c2ea9fa0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7299c923cf91eb19965eb13792a7b9cd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 已知函数
(a为常数.且
),
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e3af0dcd37fce1b21b35c9d0368518.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ddfb0d2cb78e7388619a0557bad091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334a2ea1a906d803a281dade05b97515.png)
A.4 | B.6 | C.8 | D.10 |
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解题方法
7 . 定义在
上的任意函数
都可以表示成一个奇函数
与一个偶函数
之和,如果
,那么( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.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/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2978e4c83d696c47293b5a37768e1696.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
解题方法
8 . 已知
为实数,集合
表示把集合
的元素
映射到集合
中仍为
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88f3b18c36b2d8857466b1ad5aa23df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
A.![]() | B.![]() | C.0 | D.1 |
您最近一年使用:0次
解题方法
9 . 已知
是定义在
上的偶函数,对任意的
,且
,都有
,则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e32125207addc3fdb92ceb0ec80ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f09c0670e752aa71b00f219f374b8c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 设
,函数
,则
的
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75641e80389f08cdfe19c3d6063251e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300cd4f5096e25c198ad9f6338f3dff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次