已知函数
,则
从大到小顺次为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda8bac0cd98bf3763d1c07a10f72cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78024362a1297295e7542fa89026d3cb.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
2024·陕西西安·模拟预测 查看更多[2]
更新时间:2024-05-23 09:17:16
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单选题
|
适中
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名校
解题方法
【推荐1】函数
,因其图像类似于汉字“囧”,故被称为“囧函数”,下列说法中正确的个数为( )
①函数
的定义域为
; ②
;
③函数
的图像关于直线
对称; ④当
时,函数
的最大值为
;
⑤方程
有四个不同的实根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6da13586781b436665ec9b6a44ba42e.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78173cfedaa07eac6143ecb8961bd3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650ad30207ecbadf6d40333974abe180.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998d1117b68d345ad988e86d1ec7724b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
⑤方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2c2e73f37af6ecc2d16e6cc5a620a9.png)
A.2 | B.3 | C.4 | D.5 |
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解题方法
【推荐1】已知函数在
处取得极大值,则
( )
A.2 | B.6 | C.2或6 | D.![]() |
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【推荐2】已知函数
对于任意的x∈
满足
(其中
是函数
的导函数),则下列不等式成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef4c42e117002626ff6b57e8d4316d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c477043677a52e83f5ea0fa77688970b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
【推荐3】已知定义在
上的奇函数
满足
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f40996b185353c886ecd1f85cc09e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6abed628c4b05e496ebb52683b3e5dd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】已知函数
对任意的
满足
(其中
是函数
的导函数),则下列不等式成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f385eacc118fe9b5f0c23182929d6a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352c4bf1441fda211ce8d5edf373f659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】已知
是定义在
上的偶函数,
,且
在
上单调递减,若
,
,
,则( )
![](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/2c25fb0c3e1b6ef211233170b9aa9001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724f1face977df2f57d4004e68d92b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc48d4b9cf99e111c68480985f6da929.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f22088ae8c472cb678b17d3a568e78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3fe0610421fcb4e597522d34921d24.png)
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【推荐3】定义域为
的函数
满足
,且当
时,
恒成立,设
,
,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c01ab30854f54c2514d1a05f779b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/848988f68790e43dc63165b0d2e7abc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67916087ff281a7ed54fc0c7690c9190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e43ce021d4920b6cd8f391ab5a98b0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228812cf0d1e398098e0c9a274f21115.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01028584278f231b59e18f2fdaf92880.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/071a7e733d466949ac935b4b8ee8d183.png)
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