解题方法
1 . 设
,
,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e95ba16a90d7fd9e101804b3f16009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d2baebb24f6e1df43cb7ba40896238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616b65178bc2f06c62ae33f2d624a553.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)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 若
,则
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd01fc8181e83f68a76cbf37c15740d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
3 . 已知奇函数
在
上是减函数,若
,
,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a275ae7c62ad3383c9c5e2d6499c30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4406723e7378abca7bacf643efcd117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07a4bcf2ffac9c83a53466a667d6b436.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)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
4 . 设
,
,
,则a,b,c的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1cf4217983e12724c92dadf619020cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6733fc8b38a8dcf31223429270a7f699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59edbb4dbf4133ffde8cf8ef7a5469d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 .
,若
有3个不同的零点,则
的取值范围为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/776e3c7ddddfa99e6f6f6102412a0c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa2ecaff1220a2801a8a17166296fffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
6 . 已知
,
,
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc8e8ba454743f3949f1cb1b88ba55d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec38064f0c6966ff8971c2ffd9c4559e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa64d86ecced1ecf29b195830dbc2a6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 已知函数
,
,若函数
有2个零点,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef6d6aacd10bf7f558bd70c24ce3f7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eceb09ecb20215b3efb0908ea4b5e77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 设
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86a819dab0df5557d507518c2278316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a366e2168c7a521f062cfafe81ba76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ebc0cc988dccd7f91306fbfc0a79501.png)
A.![]() | B.![]() | C.27 | D.26 |
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9 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e2d527ba96a2fcf7b99feab19aed17.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e2d527ba96a2fcf7b99feab19aed17.png)
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解题方法
10 . 已知
,
,
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463f29b4f58688f2675931f923be2580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcdc2f1b818bee84747d35a99e59c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0519cde093c1c6485c94a2071113bc59.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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