1 . 定义:若函数
在其定义域内存在实数
,使
,则称
是
的一个不动点.已知函数
.
(1)当
时,求函数
的不动点;
(2)若对任意的实数
,函数
恒有两个不动点,求
的取值范围;
(3)在(2)的条件下,若
图象上两个点
的横坐标是函数
的不动点,且
的中点
在函数
的图象上,求
的最小值.(注:两个点
的中点
的坐标公式为
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a3ff59c7595f9a810a419f964af12d5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e76fa77d1b0bc4c1af9c8c41bf0dabe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8194c647746b72b3653fde39a7a3d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031da5d48fbe63745429b1add253344f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b6c72f3daeb8af26c7fb806ae623e8d.png)
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名校
解题方法
2 . 已知函数
是定义在
上的奇函数,当
时,
.
(1)求
在
上的取值范围;
(2)求
的函数关系式;
(3)设
,若对于任意
,都存在
,使得
,求正数
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/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c401742c4e0f2757772a695fa0df6c4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4006cb607c3244dc446595067696510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e121df04531e9275387071a88cb9bb8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d2f285b5d68945deb824188616c745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba38ba108b7c84891b94613389d21226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-12-23更新
|
305次组卷
|
2卷引用:江苏省南京市鼓楼区2023-2024学年高一上学期期中测试数学试卷
名校
3 . 已知函数
是定义在
上的偶函数,且当
时,
,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/ee33c9d3-1695-4a33-9f76-2f8194e46a8e.png?resizew=212)
(1)现已画出函数
在
轴左侧的图象,请将函数
的图象补充完整,并写出函数
的解析式和单调减区间;
(2)若函数
,求函数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becd598a11b876d858728161a7a09705.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/ee33c9d3-1695-4a33-9f76-2f8194e46a8e.png?resizew=212)
(1)现已画出函数
![](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/ee97d8c31054a7150199058bc7b45cb3.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0459f7696ea12a2d22f83b5fe7f6c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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解题方法
4 . 已知
,满足
,则函数
的值域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5255c9506860b9b4c3df7f9a13a63b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c16da4ac2c54b6fb83df050a0065969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82bc8b7594a2158cfd43d4d9516d42e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-12-22更新
|
335次组卷
|
2卷引用:江苏省徐州市2023-2024学年高一上学期11月期中考试数学试题
名校
解题方法
5 . 已知函数
.
(1)判断
的奇偶性,并求
的值域;
(2)设函数
,求
的最大值
,并求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d30bcfe9bd24bfaeced53ccb2152c9c5.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946712137f047fcc89d614fa41d4d18a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
您最近一年使用:0次
2023-12-20更新
|
264次组卷
|
2卷引用:江苏省天一中学2023-2024学年高一上学期期中考试数学试卷(物理方向强化班)
解题方法
6 . 已知
.
(1)若
,求
的最小值;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2436951e9a6f5ca0fc0ae65b9d787119.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3ba36853fe46d69d3940cdb188cfdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b7e12253044b5abff2a56dcd730ced8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af26d0fd33656beaca51c833232a185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edcd38c03d0a9f36e65700485950977.png)
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解题方法
7 . 某学校准备购买手套和帽子用于奖励在秋季运动会中获奖的运动员,其中手套的单价为
元,帽子的单价为
元,且
.现有两种购买方案
.
方案一:手套的购买数量为
件,帽子的购买数量为
个;
方案二:手套的购买数量为
件,帽子的购买数量为
个;
(1)采用方案一需花费
,采用方案二需花费
,试问采用哪种购买方案花费更少?请说明理由;
(2)若
,
,
,
满足
,
,求这两种方案花费的差值
的最小值.(注:差值
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54de564e53ed78b21512cc722cf0218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650b262681fdf608130ab36553b24009.png)
方案一:手套的购买数量为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
方案二:手套的购买数量为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)采用方案一需花费
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3f53300c959a34a5f46bb01d14f82f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6615a400b8698dbec1b763e391251f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8efa8d99157a149e49eb50f4d7274ee9.png)
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8 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095809e7373b6b6c42e39057ade87279.png)
(1)求函数
的定义域和值域;
(2)设
(
为实数),求
在
时的最大值
:
(3)对(2)中
,若
对任意
及任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095809e7373b6b6c42e39057ade87279.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc08502c7cd2d84e180b1f18fdd82e50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
(3)对(2)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3082fc94285fe6fcdae2f9ff88c6530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9fef90e594e8de68a34a1e6441c941f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8326eccb6fccce4cad9ff889bf0febbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
9 . 已知函数
.
(1)求函数
的定义域和值域:
(2)若
为非零实数,设函数
的最大值为
.
①求
;
②确定满足
的实数
,直接写出所有
的值组成的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fec50b2180bce8bb76f76111bf8eb5.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9781358e564f32054081a7e0b67fc936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a675b062ab139d92504d1b9d8667f12e.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a675b062ab139d92504d1b9d8667f12e.png)
②确定满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5927bbefe02b2d5ba6f316ed39ccdd86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
10 . 已知函数
.
(1)若方程
的两根分别是
,满足
,求实数
的值;
(2)若对
,都存在
,使得
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eadbeb9fc2bc893b696ff58f80cb0073.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444ff1bacbf48306a21f06a9bb9c6594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999d8d1d7ee532e54f3a40a08f91fc3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94fbbd00763cfa37b4c5551572a1ffad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c569a8580150655448f7199d17f4e02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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