解题方法
1 . 已知函数
.
(1)求不等式
的解集;
(2)若关于
的方程
无实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41bb86452018de273e26496c714bcf2.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e661afc1ba382f0377c914e9ba6021c8.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e764c4a8ad3a55e136666d45f1f8fae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-06-15更新
|
73次组卷
|
2卷引用:陕西省安康市高新中学、安康中学高新分校2024届高三下学期5月模拟预测数学(文)试题
名校
解题方法
2 . 已知函数
,实数
满足
.
(1)解不等式
;
(2)证明:对任意实数
,使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41704e782a18e4fc47cda11f4df5c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6fae71c162e7be027a9b30a9187813.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a075dce77c9a6b964a8a3fc1ee6e8c.png)
(2)证明:对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a246b114e01128ed13a7d0798775d205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2fa1502128fd34965a4a370f1eaed4.png)
您最近一年使用:0次
2024-06-14更新
|
154次组卷
|
2卷引用:陕西省西安市第一中学2024届高三下学期高考预测数学(文科)试题
名校
解题方法
3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffead0b0c68e8f023cf5ae0a7ba90936.png)
(1)当
时,求不等式
的解集;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffead0b0c68e8f023cf5ae0a7ba90936.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a075dce77c9a6b964a8a3fc1ee6e8c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80fed8e87215b97c3b8bba07274159d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-06-12更新
|
232次组卷
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3卷引用:陕西省部分学校(菁师联盟)2024届高三下学期5月份高考适应性考试理科数学试题
解题方法
4 . 已知函数
.
(1)求
的最小值;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec0b963b90847f531c4d16568ca7f667.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fc1cd2baabbf8afea25478e1258237.png)
您最近一年使用:0次
名校
5 . 已知
,
,
.
(1)当
时,求
的解集;
(2)若关于
的不等式
的解集为
,
的解集为
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ead9e67e1b855662553f1313055392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176c4a9de5a11fa2574fb00cd316a8db.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0db2c49919467a2e14540f2aabd05cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04bbcc3eb28e550b30e7ba6eaa09fe8f.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47a0b04c3da1ad31cccd905a575b151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a2c01ac2a7f6ad7e03cb7a61daefab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-06-12更新
|
123次组卷
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2卷引用:陕西省西安市第一中学2024届高三第十六次模拟考试数学(文科)试题
名校
解题方法
6 . 已知函数
,
的最大值是
.
(1)求
的值;
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b579f06fb171212d46ff13b34c799cbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a895920706f9f39d1b48ab42e09923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bf140abb1d26b46f979f693fe71e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56bfd6d391021a360e4b214de44b33c.png)
您最近一年使用:0次
2024-06-11更新
|
222次组卷
|
5卷引用:陕西省西安市第一中学2024届高三下学期模拟考试数学(文科)试题
解题方法
7 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若关于
的不等式
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a367909f2f4c8f31102b6845c9553c3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc901cbdb68130ddac3174583dd93c.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96f30e9371643a1d1fa6477b9a9bcdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f88173ef0c29bedd0155b7893d2474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-06-10更新
|
159次组卷
|
3卷引用:陕西省洛南中学2024届高三第十次模拟考试理科数学试题
名校
解题方法
8 . 已知函数
.
(1)求不等式
的解集;
(2)记
的最小值为m,若a,b,c为正数且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c3632cb507af8d2010dde41ec950767.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76693f7ef9a4dca9c649153b6d7196e4.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751e274e9107d780c39ba9c49d6daefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d50520696755ed3e505c0feff29d0a6.png)
您最近一年使用:0次
2024-06-09更新
|
68次组卷
|
2卷引用:陕西省西安市第一中学2023-2024学年高三下学期高考考前模拟考试理科数学试题
名校
解题方法
9 . 已知
,
,
均为正数
(1)求证:
;
(2)若
,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)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8920a005c0b2e5b9cf0f916d1ce20329.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf43bd907a0590831d324d5eff38ea54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd71a22dc65b28a0e6f8e4b9ee9e3b0.png)
您最近一年使用:0次
解题方法
10 . 已知函数
,
.
(1)当
时,解不等式
;
(2)若对任意
,都有
成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05cac0128a3e24c8f2c15bdf5a776ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37c35e33ffa1a55a0693ae2319da91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67924b367a3ce000502f6396d080ab56.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37c35e33ffa1a55a0693ae2319da91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b02fa445fd16b43e80cbe3915dbbbb.png)
您最近一年使用:0次