解题方法
1 . 已知集合
(其中
是虚数单位)
,定义:
,
.
(1)计算
的值;
(2)记
,若
,且满足
,求
的最大值,并写出一组符合题意的
、
;
(3)若
,且满足
,
,记
,求证:当
时,函数
必存在唯一的零点
,且当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531f55c9de4647282bc0424a81f4fd25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ddb621d78a738eba6ebafecbbd7d06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47aa3fcf666d1169ceca5e1e720b926e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ccc73232efc9d641adcbae21035944.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0ff8b406a295a58f4fbb36b4c292fa.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be674fcbd2fd1a608fd4a9705c70db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20e7c6170cd75c5a40d7e695eda15e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e95d018246b699601d127e79ec46131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f82089a3186fdffaa2535faebd3d28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b54286fe72b8305272c36c0a3a8d2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f7d480cfc89b872404666083e62db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546ababc482b51df95c4aba05ee18c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d828db2a08e2a1da164a0012cc6627a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661249bf6499017f9e5e03db3fcd93d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d5ec74c81f7d02f273f7eecefaf9a7.png)
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2 . 已知集合
,其中实数
是常数.
(1)求集合A与集合
;
(2)若对任意的
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea3ac2f45b27e6f22bddfdc1ca0ef72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)求集合A与集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e54c064943028addb20ba134211bf4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc25cc8df1a15c058f1097b1786ef1ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.空集 | B.![]() ![]() |
C.![]() ![]() ![]() | D.以上都不对 |
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2卷引用:湖北省黄冈市浠水县第一中学2023-2024学年高二下学期期末质量检测数学试题
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4 . 已知函数
的定义域为集合
,值域为集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3f02900d098c6afa48d589eb920a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b98b1fdd7643c5a8d01088daf369af2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 下列函数中是奇函数且在上单调递增的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-03-31更新
|
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2卷引用:北京市延庆区2023-2024学年高一上学期期末考试数学试卷
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解题方法
6 . 下列说法正确的是( )
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.函数![]() ![]() ![]() |
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解题方法
7 . 函数是定义在
上的单调递减函数,则不等式
的解集为
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8 . 设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c22aa8e9b0883c5477bda5e69364630.png)
________ (用
来表示.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df34923394da1b09434c4789b1da2e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c22aa8e9b0883c5477bda5e69364630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
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9 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4753f4a4456d0df13843b71015bfa14.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282abea3737e9f30c612f5ac0b78b600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4753f4a4456d0df13843b71015bfa14.png)
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2024-03-20更新
|
380次组卷
|
3卷引用:福建省龙岩市2023-2024学年高一上学期期末教学质量检查数学试题
解题方法
10 . 函数
的图像如图所示,定义域为
,其中
,
,当
时.图像是二次函数的一部分,其中顶点
,当
时,图像是指数函数的一部分.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/6648dea6-3531-4e14-9329-39f005d1cf7e.png?resizew=179)
(1)求函数
的解析式:
(2)求不等式
的解集:
(3)若
对于
,恒有
恒成立.求出
的取值范围(不要求计算过程).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d381f8891b6b2d2417b7df2492eb3b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302e421a250119f34d8f3c9928730490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad324be3bebd9c8051c5f502df2b536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d381f8891b6b2d2417b7df2492eb3b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5d54ea50d01535318b10a9fa570931.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/6648dea6-3531-4e14-9329-39f005d1cf7e.png?resizew=179)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fbc3dfb24fa1f2a3bbfdb74f5f91eaf.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681d6d27b23b1c41834d7516122f73f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aebfb85aae9dd1ada8c9bc10008f987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae828be829213bd6b66651dce99263c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
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