1 . 已知
,则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c7068ba456abb4ffa4da95926f40b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分又不必要条件 |
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2 . 已知扇形的圆心角为3,周长为30,则扇形的面积为__________ .
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3 . 已知幂函数
,恒过点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7bdb3d399de6ad3eb1f328a596b1a6c.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() |
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4 . 下列函数中是奇函数的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
5 . 已知
是定义在
上的奇函数,且当
时,
.
(1)求
的解析式;
(2)若
,求实数
的取值范围.
![](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/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689f1331ce48b4ad7cebb9958179b652.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158dd3cadbe41b494f341cc92b9b93ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
6 . 为了得到函数
的图象,只要把
的图象上的所有的点( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e977643d91df5f0e8730404f371b8027.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e784aa62977875fa8f2b6b39f717b6.png)
A.向左平移![]() | B.向右平移![]() |
C.向左平移![]() | D.向右平移![]() |
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解题方法
7 . 若点
在角
的终边上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d332c5527cdfaff58b050d8bbd52628a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/889a5e04c5187fb20415a59ce6adeed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d332c5527cdfaff58b050d8bbd52628a.png)
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8 . 已知函数
的图象与
轴交于点
,若
,
是方程
的两个相邻的实根,且
.
(1)求
的解析式;
(2)求
的单调递减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f05ab09e7f06905efb4a1db9ad4259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db3e49df811c97550d42912410771d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565254c5d65bf0c247dbbaa9150e463c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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9 . 下列命题正确的是( )
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.![]() |
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解题方法
10 . 若
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73dfe15e868b3b7bf0b02c3e3d9d3966.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50647edd8e9ec28ec7db9951d9769a6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aaff0b53b9e939d0d3d2dbe465bcd70.png)
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