解题方法
1 . 已知
,
,
,则a,b,c的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893e5361cb2fac4a1ace0d3f7f7e1368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1cb90da3fcff90e3a6ad70765b7b88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff52cb77bc96e5b391d0bd06b05bde6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
2 . 若
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b27b00d0193886cb9a2981e93edcdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56fbe26e7eaaeddc721c1da9190cdbae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e7ac02845df853d360578fd84cebc7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3 . 下列四个函数中,在
上单调递减的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
4 . 设
,
,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dbf915d981d8455fc1fd2603e8672f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a64db9ee21d82a8a7b76322c60293e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d1c7055fc3cc0a24380158dcb771fd.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
5 . 已知函数
.
(1)求
的定义域;
(2)判断
的奇偶性,并证明;
(3)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2d1867282f5cd284216f46bc23b2e3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
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6 . 下列函数中,在区间
上单调递增的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/830acb3d191d323e9ea6e710c7de0061.png)
______ 2(用“
”“
”“
”填空);
的零点为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65f4dd88a25432a89f37c10fddd59973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/830acb3d191d323e9ea6e710c7de0061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
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解题方法
8 . 已知函数
,若关于x的方程
有两个不同的实根,则实数k的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54840f0112bebb28428c971f6f76ed03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb101c5df08aa35ae24a6416840b199b.png)
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9 . 下列函数在区间
上单调递减的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知函数
的零点为
,
的零点为
,若
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fe200dd9ff2505e93dda6651e41cf4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1d3a63706a77f2466269773dde8131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38539ff870207a4e0c7dd315735e5793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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