1 . 已知集合
,集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efcc8cda62cc39b86e95bc21903aef3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f59941f16b70148b465538da5d57483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知定义域为
的函数
(
且
)是奇函数.
(1)求实数
,
的值;
(2)判断
的单调性,并用单调性的定义证明;
(3)若
,当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9e8607552601af5d7980102b1dc3ba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28419afaef39c3de4bd510d403ebd05d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8517e049ef60f5e04d6e0efa8002fd12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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3 . 设函数
(
,且
),若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96479e318f577cd4c2e995678e010126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcef60e5d4f3b49a3c6e2507e8998439.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 已知函数
满足以下条件:
①
图像关于
轴对称;②
的值域为
;③
在
内为增函数.
则满足上述条件的一个函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
______ .(只需任意写出一个即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be381da62d4a042476aa11dbd5824e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2edd8edcb21bd41584daf9bb95a5c7.png)
则满足上述条件的一个函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
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5 . 一组数据23,76,45,37,58,16,28,15,20的第75百分位数是______ .
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6 . 下列命题正确的是( )
A.若![]() ![]() ![]() |
B.若![]() ![]() |
C.扇形的周长为![]() ![]() ![]() |
D.若![]() ![]() |
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7 . 设
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d0f2e25c1e3558f63b11db6a57f512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69f4f98834e82cd74b57ac5f64d934c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9208d9417d1fc15a0cee71a72b98e049.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知函数
.
(1)判断
的奇偶性;
(2)判断
在
上的单调性,并用定义证明;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff898a7280da14e0b1e71506749f583.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
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9 . 下列各组函数
与
的图象相同的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 化简求值:
(1)已知
,且
为第四象限的角,求
的值.
(2)已知
,
,求
的最小值.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9088e31e00eaa4e95c1e6717b0c82cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ecae5f8753141cf8d274afb20a1907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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