1 . 已知实数
满足
.
(1)证明:
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ae5648bcfccbe0b2f49c69a66793b0.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df63cb762aa1710337f49a3d086f09cf.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c476055f2f44d1344c8bc117fba235.png)
您最近一年使用:0次
昨日更新
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7卷引用:2024年高考全国甲卷数学(理)真题
2024年高考全国甲卷数学(理)真题2024年高考全国甲卷数学(文)真题专题39不等式选讲专题40不等式选讲(已下线)2024年高考数学真题完全解读(全国甲卷理科)(已下线)2024年高考全国甲卷数学(文)真题变式题16-23(已下线)2024年高考全国甲卷数学(理)真题变式题16-23
解题方法
2 . 已知函数
.
(1)当
时,解不等式
;
(2)当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d9eb22a666dee9eb4a9a590dd6aafc7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e693d36b6395a0e28324c29c54151a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f999f9c9246a6d128807b138d9d15de9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc2607d8836f265bbc1b2821391194a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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7日内更新
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4卷引用:内蒙古名校联盟2024届高三下学期联合质量检测文科数学试题
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
|
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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
名校
4 . 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
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2卷引用:四川省百师联盟2024届高三信息押题卷(四)文科数学试题
名校
解题方法
5 . 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)
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2024-06-11更新
|
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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
6 . 若a,b均为正实数,且满足
.
(1)求
的最大值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89dc8118d95d6c7bd5b7d38667a498e8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbcb79c362bddb898f8a9d02a5f5d085.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd9ff4f42b949e370af7b5be296a7ab.png)
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2024-06-08更新
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3卷引用:四川省南充市2024届高三高考适应性考试(三诊)文科数学试题
解题方法
7 . 已知
均为正数,函数
的最小值为3.
(1)求
的最小值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaac721898793d14a799c79db3658685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a408b1d9e3e39b48f8e75ccfda2bea.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfaab39aeb073af04334f8ccb9bdd507.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5958b88cd14aa8952d5cb059f1405a5.png)
您最近一年使用:0次
解题方法
8 . 已知
.
(1)若
,解不等式
;
(2)当
时,
的最小值为3,若正数
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e059e3b254a2129aa62fa3821fa94069.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b4d04800acca6ef5a8696befee0ece.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b69ab168ebbbce33f176a1340882326.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404a00bf430f0f1a0fadc3130b79cb23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7665f6fc755673a94df20bb66c694013.png)
您最近一年使用:0次
2024-06-04更新
|
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2卷引用:四川省雅安市2023-2024学年高三三诊数学(理)试题
2024高三下·全国·专题练习
9 . 函数
,
,其中
为常数,当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab0a4e08b5bbfa6352b3be4052c071a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7bb0f15566a600dd8309c69e729599e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fe2115d883d13561e28006d3f6143b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca976e2a17cb8969514ab0c10c839c56.png)
您最近一年使用:0次
解题方法
10 . 已知函数
.
(1)求不等式
的解集;
(2)设函数
的最小值为t,正实数a,b,c满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/067a194da5f227dd54ef37943a14e9fc.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990d3feee85e869ea9ab561ff63d46a2.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6468ff23e01b82e3a4a08c7b4596d361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d11fd717f1df3825d28048b918246919.png)
您最近一年使用:0次
2024-05-30更新
|
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|
2卷引用:四川省百师联盟2024届高三二轮复习联考(三)全国卷理科数学试题