解题方法
1 . 已知函数
,
.
(1)函数
在
上单调递增,求实数a的取值范围;
(2)当
时,对任意
,关于x的不等式
恒成立,求实数a的取值范围;
(3)当
,
时,若点
,
均为函数
与函数
图象的公共点,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f779eb0eb4e0ca4a92b20fe9b77be3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f588722d20a51f2e43f9318589b3d6.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b2856045b940760ebabe6606df19a6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac9eb4f13a6ec140f7050e8d7dde52c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b225d772013d021cf1bfe7b9421fa5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b7e35faab6d74fa0c36599c39d1698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ed427e67d7d27d53df7039cca81038.png)
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2 . 关于x的不等式
的解集是
,那么
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2e657a62ee87d049871c459b3cf09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26c416363ab2a9ed000b429540db55e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ee4460e620e4e4889a0bfca17d0801.png)
A.1 | B.3 | C.2 | D.![]() |
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名校
解题方法
3 . 已知正数x,y满足
,则
的最小值是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a825050351f5dad099f9c692e440f91d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5abf90e8307ef8dcc1030ebe7fd06a.png)
您最近一年使用:0次
2024-01-24更新
|
461次组卷
|
3卷引用:江苏省淮安市2023-2024学年高一上学期期末调研测试数学试题
4 . 如图1“Omniverse雕塑”将数学和物理动力学完美融合,遵循周而复始,成就无限,局部可以抽象成如图2,点P以
为起始点,在以O为圆心,半径为2(单位:10米),按顺时针旋转且转速为
rad/s(相对于O点转轴的速度)的圆周上,点O到地面的距离为a,且
(单位:10米),点Q在以P为圆心,半径为1(单位:10米)的圆周上,且在旋转过程中,点Q恒在点P的正上方,设转动时间为t秒,建立如图3平面直角坐标系
.
(1)求经过t秒后,点P到地面的距离PH;
(2)若
时,圆周上存在4个不同点P,使得
成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2584d4e78881413d8ddd1ec84011db2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/29/02068183-41e7-46dd-8916-f69c8e00bae1.png?resizew=177)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/29/5e8787db-81e4-4dec-ac9f-5aa14404dfc1.png?resizew=250)
(1)求经过t秒后,点P到地面的距离PH;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b8a359aff6030dbfeef0f628341b07d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8b38f88b0f72334f0530fd827fefb.png)
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名校
5 . 已知函数
,
.
(1)求
的最大值;
(2)若对任意
,
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3c95fa881ab6761e0da3a5f1d50f70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5f3a56cf4ffdc7740752c85aa6e898.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecea86a48d471af5a152340b43c9da5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bf60c5e8996d138198fe74f30ce520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4985e9c782063e89a206196f9354ddee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2024-01-06更新
|
341次组卷
|
3卷引用:江苏省淮安市楚州中学2023-2024学年高一上学期12月教学质量调研数学试题
解题方法
6 . 已知关于
的不等式
对
恒成立,则实数
的可取值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6307992f84eefd48fd78766663b34d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.-2 | B.0 | C.3 | D.7 |
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名校
7 . 已知集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20351f678e40432f683a7b945ea976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-11-28更新
|
480次组卷
|
2卷引用:江苏省淮安市盱眙县马坝高级中学2023-2024学年高三上学期期中数学试卷
8 . 中国文化之美照亮生活,宋代的几何图案(图1)注重理性和逻辑的文化风气,中式美学的另一种浪漫,蕴含着数学对称之美.几何图案由函数,
,
与函数
(
)图像(如图2)分别关于
轴、
轴及原点
对称所得(如图3).
(1)若图3构成正八边形
,求实数m的值;
(2)若关于
的方程
有两个不相等实数根
,
.
①求实数m的取值范围;
②求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df28f28107cb72571abc94291e2c05d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4412dd71a98012db25a3535bbfe171a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.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/3b2c84e7b41a841a230ed5f8a42309aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/80f5a0e8-832b-4b49-a2bf-c8e39893899c.png?resizew=268)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/f7548380-7820-4b02-937c-d6a9350dbaed.png?resizew=158)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/af57deb0-f9c4-4a4a-a617-b89a37e24a2a.png?resizew=194)
(1)若图3构成正八边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17d4a6cf11cda87b3dfafaecdec683f.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9587df831df1af5e7dd6be5fdc7bd8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
①求实数m的取值范围;
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cca093c8d357efeb34eae478368e58e.png)
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解题方法
9 . 已知函数
.
(1)当
时,关于x的不等式
的解集为
,求实数n的值;
(2)当
时,若
时,关于x的不等式
恒成立,求
的最小值;
(3)当
时,若
时,关于x的不等式
恒成立,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1310aaf46a05655568261f38fcbc1d37.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd38164f9aca60fc9f8066eae5c6e13c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0f9659f69c43eebf23ed63d0373359.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a4480988244a9d04ec293975db2cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383c171cd3f4f3388a7eedb8b1e2006c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
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名校
10 . 对于实数
,规定
表示不大于
的最大整数,那么不等式
成立的充分不必条件要是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36409ec8811680e4b035cd1991e5c96.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-10-27更新
|
650次组卷
|
3卷引用:江苏省淮安市2023-2024学年高一上学期期中模拟数学试题