1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f38910fac88bb8284a6b51522c0f1b.png)
(1)判断
在
上的奇偶性,并证明;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f38910fac88bb8284a6b51522c0f1b.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ff4a1f5d3ad9d7668fe555e70b774c.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/006c1caebb4f9b4988729d1639119b56.png)
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2019-10-22更新
|
465次组卷
|
7卷引用:2019年9月河北省廊坊市高三上学期高中联合体数学(文)试题
2010·河北秦皇岛·一模
解题方法
2 . 设n为正整数,规定:
(其中n个f),已知
.
(1)解不等式
;
(2)设集合
,对任意
,证明:
;
(3)求
的值;
(4)(理)若集合
,证明:B中至少包含8个元素.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d168bbddee33d89e61ee0d7b5740bcbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc1f6ca3e82b5fa4d7305655d4d13c4.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c7572463225bb3b65cb371f4496440.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4fa7f541be676dee0b2f9ec7ad965db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0829736ff553d2b1bbaefa6c806749.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9dbb89243dd3ac82cd4efd77e4917f.png)
(4)(理)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beba701e9c44bd1cd61c82f3f1599bc0.png)
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