1 . 已知n为正整数,规定
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51ebf1be875c1607e65a569284efd70.png)
(1)解不等式
;
(2)设集合
,对任意
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9ab7bb40f58f28c9799b20f91d15d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e422f8abdba5be2f3bc9c689d79c798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51ebf1be875c1607e65a569284efd70.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee6c3932aba783852ca9423baadb8b7.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d86b87b54480c86df52e979a4a934b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f41da3817dc16458441396623307280.png)
您最近一年使用:0次
2020-02-07更新
|
297次组卷
|
2卷引用:人教A版(2019) 必修第一册 逆袭之路 第三章 3.1 函数的概念及其表示 3.1.2 函数的表示法
名校
2 . 设
为正整数,规定:
,已知
;
(1)设集合
,对任意
,证明:
;
(2)求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf89d04cc7399d97fcb0629e5185e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c40100b719004ba1ee5eaaba68a6d4.png)
(1)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d86b87b54480c86df52e979a4a934b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f41da3817dc16458441396623307280.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89636fa84e6ca84d03416c8399fc602e.png)
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解题方法
3 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a15e7094bb90218095b02b16157aba.png)
(1)若
,求
的值;
(2)证明
在
上是增函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a15e7094bb90218095b02b16157aba.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e28c6cbcc46821ebf88a38fa8d6e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c15040e003066005add7f6fdaedc6c.png)
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名校
解题方法
4 . 设函数
,其中
为常数且
.新定义:若
满足
,但
,则称
为
的回旋点.
(1)当
时,分别求
和
的值;
(2)当
时,求函数
的解析式,并求出
回旋点;
(3)证明函数
在
有且仅有两个回旋点,并求出回旋点
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b433ddb30525dd8e2e8a2929a0de669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ee91436c8d3212b1a723456a962b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5140af075af23abc35a5974d5c1a4dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f539dd5835a0400aaef7d009780f84f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e42fd4b178cf2159bfcbdf2810d3ecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292b7eb560126882ecf95b05ae194402.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5a1a6d73d9bcbc349d4407fde97d34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add1a06062f9196e8e83452269db2316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(3)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3993391fe16e7315c4d92af28c03fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
您最近一年使用:0次
2020-03-04更新
|
471次组卷
|
2卷引用:广东省汕头市金山中学2019-2020学年高一上学期期中数学试题
名校
5 . 已知奇函数
的定义域为
,其中
为指数函数且过点
.
(1)求函数
的解析式;
(2)判断函数
的单调性,并用函数单调性定义证明.
(3)若对于任意的
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1043ae7c5663c05d34a4d8678b4b91da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25b8962c41f757f2b7d7fd4f6f4fc19.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fad48c242b2320092f2071921696bad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71a7101e0665b9bc75328bc6b408ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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6 . 已知函数
,
.
(1)在同一直角坐标系中作出
与
的图象;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/37778d67-ffb7-46c5-b724-f97c19893a9c.png?resizew=174)
(2)请写出
的一个函数性质,并给予证明;
(3)请写出不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ace0c072dc6426e620c02a26c892b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d55dc1d1b088ee0ef8fc80fa21a64c.png)
(1)在同一直角坐标系中作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/37778d67-ffb7-46c5-b724-f97c19893a9c.png?resizew=174)
(2)请写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(3)请写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab42740d8f095b5f7825d14c4c312096.png)
您最近一年使用:0次
名校
7 . 给定函数
、
,定义
.
(1)证明:
;
(2)若
,
,证明:
是周期函数;
(3)若
,
,
,
,
,证明:
是周期函数的充要条件是
为有理数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd9a4c5662492fb01f2fa2a45ce43e3.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76cb31511964c3bdd9bdea3b3e3af144.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf24c89bf6f2120addb7f231b94a8490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e33a79cc53b2fc63f3e2107313a6ec6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a50ca214d94500b83e493e288882fcc.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f788c9ddad27e96e28069b70558021b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/156213ad075f980c16a80aa0c04b6fe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce21eee8b5a73aec951ab7b6712ab460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8014b097bcc713cb46b0387b5465f17a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd74add83d098d62539e2d8234e2d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfcc567b95a320abcb25509923cd001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b287937887574e2c1e9a0222c3021936.png)
您最近一年使用:0次
名校
8 . 已知函数
.
(1)求
,
的值;
(2)求证:
是定值;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e40fed2dce043fc277b823458785587.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abc6b7bbea0782699a36b825b2b1b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745d1a3f3cf3468ff09362a5d2d7d348.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0b7d88e62d3ed1425e3f80b5e7c6cc.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85dedb504db463bbd4436f3397e422b4.png)
您最近一年使用:0次
2010·河北秦皇岛·一模
解题方法
9 . 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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11-12高三·上海奉贤·期末
名校
10 . 函数
定义
的第k阶阶梯函数
其中
,
的各阶梯函数图像的最高点
,
(1)直接写出不等式
的解;
(2)求证:所有的点
在某条直线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64102e427ff7de0f58598a44b9e538aa.png)
定义
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62965871a499ff7a6fcb8b5dc52a2cf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e36bff57bcfa86432b340e25e51d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a616b71b8c4dd8ca2ad89989aff2f06.png)
(1)直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f6313f09d17496008ebe3cc1fca0ca.png)
(2)求证:所有的点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf99487d7860d017c0747ff966edfd77.png)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935951872/STEM/5a9af3db09e549d985acbb636da0482b.png?resizew=15)
您最近一年使用:0次