名校
1 . 定义:若对定义域内任意
,都有
(
为正常数),则称函数
为“
距”增函数.
(1)若
,试判断
是否为“1距”增函数,并说明理由;
(2)若
是“
距”增函数,求
的取值范围;
(3)若
,其中
,且为“2距”增函数,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c52d8e6a84e84b7ada833e0f4c719e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d220c0985bf00e3f07fbb08775eb45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030138b501ad129371e7d71b6eb7f3b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc80a9dbbe2e340bc8b273267830dcf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2023-01-13更新
|
645次组卷
|
3卷引用:江苏省盐城市上冈高级中学等2022-2023学年高一上学期期末联考数学试题
江苏省盐城市上冈高级中学等2022-2023学年高一上学期期末联考数学试题河北省石家庄市二十二中2022-2023学年高一下学期开学考试数学试题(已下线)专题10 指数及指数函数压轴题-【常考压轴题】
名校
解题方法
2 . 已知函数
定义域为
,集合
.
(1)求集合
;
(2)若
是
成立的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492dbabe6630f6bf718ebf2aaeeaf51a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f419c390acced541ef0c8fc3897cbb2.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(2)若
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-01-13更新
|
345次组卷
|
2卷引用:江苏省盐城市上冈高级中学等2022-2023学年高一上学期期末联考数学试题
名校
3 . 下列说法正确的是( )
A.若![]() ![]() |
B.如果幂函数![]() ![]() ![]() |
C.存在![]() ![]() ![]() |
D.在锐角三角形![]() ![]() |
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|
424次组卷
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2卷引用:江苏省淮安中学2022-2023学年高一上学期期末模拟数学试题
22-23高一上·江苏南通·期末
解题方法
4 . 关于
的不等式
的解集为单元素集,且
,若不等式
恒成立,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/719b46fcd9a24f57a1e3d919252b01ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af663fcb035875d892a02781a2f1eaba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知集合
,
,若
,则实数k的取值范围为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6fdc2ac059b4623d373a8b151ed579.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41072770cf3b49f29cb3b9139ce61627.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5102ed1bdef921172bc936f346754b7e.png)
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2023-02-01更新
|
942次组卷
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5卷引用:2023-2024学年江苏省盐城市大丰中学、盐城一中等六校联考高一(上)期末数学模拟试卷
2023-2024学年江苏省盐城市大丰中学、盐城一中等六校联考高一(上)期末数学模拟试卷(已下线)专题01 集合及其运算2-【寒假自学课】(苏教版2019)重庆市第八中学校2021-2022学年高二下学期期末数学试题(已下线)专题1-2 集合运算求参与最值10种题型归类(2) - -【巅峰课堂】题型归纳与培优练(已下线)考点巩固卷01 集合与常用逻辑用语(九大考点)
6 . 已知函数
,
.
(1)若
,关于x的不等式
的解集为
,求
,
的值;
(2)当
时,
恒成立,求实数
的取值范围;
(3)定义:在闭区间
的长度为
,若对于任意长度为1的闭区间D,
,使得
,求正数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd670f679806b73a08b5bfc3086d7a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98aff23e80a3538462c08dca1b8b0d39.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35ad707d73bb7af2068dd5f520af451e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc065b387e997b3fac52829f19c9ad99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)定义:在闭区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5867ef0ab39aa628041fb809e1c2bea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c54705d32dc6820f1a90eec2225dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f50e17e156a680d292939071360dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfafbba0202ea44cd2ddb4cd995ad86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
7 . 已知
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fdcf3678adb35ee7e456a3d000b191c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/599ca5a57cbb97e56b5b25a68246737f.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2023-01-29更新
|
403次组卷
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2卷引用:江苏省常州市教科院附属高级中学2022-2023学年高一上学期期末模拟数学试题B卷
8 . 设函数
,
.
(1)若
,设
的解集为A,求
;
(2)若
对
恒成立,则求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0c71bdc8cf593430f7922f0844b9fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51004eb0e13c48fcc1fc9365d44f53ec.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb4071dc776c61b5631fb8f49ab01ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada4f65d4a2b81e1e170058b01fbcb46.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff4f47b146dbd4820654affb735fbc7.png)
您最近一年使用:0次
解题方法
9 . 已知函数
,若对任意
,不等式
,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d83bd1412e2fab2b20bcfa058362e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7a2da365da171a0a7a96aab76f61ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9065d0eefd694ed451ed7406f5ffe361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
10 . 设
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2559752ee6654280033abce67259c37c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/106046ec87e367a01c031d6a2d1aa4a1.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次