解题方法
1 . 已知函数
是偶函数,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9af0b75950ea6894624db593add9ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71b5c00c6aa6e65666fd9d31819f4f6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 定义在R上的偶函数
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b5235c6b17f7df715ddb87bc8f22f0.png)
,且在区间
上单调递减,已知
是锐角三角形的两个内角,则
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b5235c6b17f7df715ddb87bc8f22f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7608d52558784426f17e98d879d57041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548eba27f282531ceb175e2d908c7e6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a9c385b4ae4c235e93801656672228.png)
A.![]() | B.![]() |
C.![]() | D.以上情况均有可能 |
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3 . 下列函数
是
上的偶函数,且在
上单调递减,则下列各式成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 下列函数中,既是奇函数,又在定义域内为减函数的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86179e55b6cf0f777e0fe3ac3efbc421.png)
(1)求函数
的定义域;
(2)判断函数
的奇偶性;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86179e55b6cf0f777e0fe3ac3efbc421.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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6 . 已知定义在
上的函数
是奇函数,其中
为实数.
(1)求
的值;
(2)判断函数
在其定义域上的单调性并证明;
(3)当
时,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df62893af2d9b8cb06a736c8ec448f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4440dae5b564c68d767e66a7481d943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4afc77eabdb9af675e8638b0eeeb9024.png)
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名校
7 . 已知定义在
上的函数
满足:
①
;
②对任意的
都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d28c41c0dab365316497fd39e0426966.png)
;
③对任意的
、![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411837b4b3078d05b43cb0439259a362.png)
时,总有
.
记
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
②对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d28c41c0dab365316497fd39e0426966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dfe55cc6f2aa28b2522294dde100abc.png)
③对任意的
![](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/7b63ab77ae86299fc63d5d3487c89dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411837b4b3078d05b43cb0439259a362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a57d6d7b74ae630e6ce3b43afe6060.png)
记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c592cdea6faa9ff168a3161cbe11cc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa38ca27c6c0c40d5e36b2ae4fb7ba7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-01-04更新
|
307次组卷
|
2卷引用:湖南省常德市临澧一中2019-2020学年高一上学期第一次阶段性考试数学试题
名校
8 . 已知函数
,函数
是偶函数,且
,当
时,
,若函数
恰好有
个零点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be546963a2f1d70e7197e65975ffc7bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15bc3ba864579ce444db6b3cdbaa41f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4bb0ef04eebd9f4e77a17a12687fff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b7c2420c387be8882df4359ac10b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-01-02更新
|
620次组卷
|
4卷引用:湖南省湖湘教育三新探索协作体2019-2020学年高二上学期12月联考数学试题
名校
9 . 设函数
(
,
为实数).
(1)若
为偶函数,求实数
的值;
(2)设
,请写出
的单调减区间(可以不写过程);
(3)设
,求函数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866513d3158fb571bfcbb61c6b56e6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/301605e86e5a5e61a65c91cd3dd8b77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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名校
10 . (1)已知
,求
的解析式;
(2)已知
是定义在R上的奇函数,当
时,
,求当
时
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d944432da42724af723664d55cb9691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ee0208a89984b77fd68ca73aecca620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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