名校
1 . 已知
:
,
:
.
(1)若
是真命题,求对应
的取值范围;
(2)若
是
的必要不充分条件,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ab98a8985fa486cf57221143e00c8e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1972ce5a7967f20b02e06f16cb37f8a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-09-11更新
|
1669次组卷
|
7卷引用:河南省信阳高级中学(北湖校区)2023-2024学年高一上学期9月月考数学试题
2 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc63193d3c686f63aa56186dd777a6e.png)
(1)解不等式
;
(2)若
,求证:
,使得
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc63193d3c686f63aa56186dd777a6e.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188281cc0c7af6e95c32b9bbb94ffc21.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a57e060f61f7efa54982bda67db483a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02491f9709f00a1bc169278fbe01f576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52eaacd91c25b6d91415aa741f821f96.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
,
.
(1)求函数
的最小值;
(2)设
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a483b28b0a51697e711e832a5ca3d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0bc6775d59e23a45d1c4357d5ffe228.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfcc567b95a320abcb25509923cd001.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76acc9d0f0f0f6befbb9d9a64c497d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef791a5215dfbde16dea9499dda72a53.png)
您最近一年使用:0次
2023-07-27更新
|
299次组卷
|
8卷引用:四川省南部中学2023-2024学年高三第四次月考数学 (理科)试题
解题方法
4 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)当
时,若
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5663b67b9be5cabd8b7f73cb6a0f2ee2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8004ba35a95a6f588f87beb8b4d899f9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f325b0a20f1c85294573dd73201d0cc8.png)
您最近一年使用:0次
2023-05-06更新
|
201次组卷
|
4卷引用:陕西省西安市雁塔区第二中学2022-2023学年高二下学期第二次阶段性测评理科数学试题
5 . 已知函数
.
(1)若对
,
恒成立,求实数
的取值范围;
(2)当
时,记
的最小值为
,且正数
,
满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baafab2dfa8195ca4db3d2afca0bf22b.png)
(1)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcbd5bb726a08c308b48373afebbb768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](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/836f6cce8ef31dcd09214c6aff0d5be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7266b2ef457b8ddeee3fa2cc24022e.png)
您最近一年使用:0次
2023-05-06更新
|
160次组卷
|
2卷引用:贵州省黔东南州镇远县文德民族中学校2023届高三下学期4月月考(全国甲卷押题卷二)数学(文)试题
解题方法
6 . 已知
,
,
为正数,函数
.
(1)求不等式
的解集;
(2)若
的最小值为
,且
,求证:
.
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/861dddb12c0069ed621336146013cd7a.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/062844ed8f0949e6717bb6fd0b84fe46.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f80cecb1ff77ae430f9d946e24b31fe.png)
您最近一年使用:0次
2023-04-25更新
|
278次组卷
|
3卷引用:陕西省西安市西咸新区泾河新城第一中学2022-2023学年高二下学期5月质量检测文科数学试题
名校
解题方法
7 . 已知函数
.
(1)解不等式
;
(2)若
在
上恒成立,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70adeef113c5c01380a4cd25491c33f.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe9fef15d960040b283249030255e5a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac27aff729ec1064f0b5bf84f39f845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2372f424431ce7b547a66b7d61d75421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-04-06更新
|
681次组卷
|
8卷引用:河南省郑州市等2地2023届高三下学期3月冲刺(一)文科数学试题
解题方法
8 . 已知函数
.
(1)
,解不等式
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dc35ef330a91566674b6ea35f8f8ac.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc901cbdb68130ddac3174583dd93c.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94cc25a7cf28ed096549fbae97fce40a.png)
您最近一年使用:0次
2023-03-08更新
|
324次组卷
|
4卷引用:江西省赣州市2023届高三下学期3月摸底理科数学试题
名校
解题方法
9 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfaa9e73ac63fc881edd08ebb9b781b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93a699a385ae453ce1a6f98e6eb519b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c654568fa49b26d57e638e6c85d5b084.png)
您最近一年使用:0次
2023-02-22更新
|
283次组卷
|
8卷引用:河南省安阳市重点高中2022-2023学年高三下学期2月联考理科数学试卷
解题方法
10 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a1eb20b029c3573405264df16a6e71.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c33d27a28b7902302b43fdc32fda3b44.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d5a0e25aebe1cc182d2247ed344652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-02-14更新
|
571次组卷
|
7卷引用:内蒙古巴彦淖尔市衡越实验中学2022-2023学年高二下学期第一次学业诊断测试数学(文科)试题
内蒙古巴彦淖尔市衡越实验中学2022-2023学年高二下学期第一次学业诊断测试数学(文科)试题陕西省榆林市2023届高三上学期一模文科数学试题陕西省榆林市2023届高三上学期一模理科数学试题(已下线)江西省上饶市2023届高三第一次高考模拟考试数学(理)试题变式题21-23(已下线)专题六 不等式-2(已下线)专题22不等式选讲陕西省商洛市洛南中学2022-2023学年高二下学期期中文科数学试题