解题方法
1 . 已知
,
,函数
的最小值为2.
(1)求
的值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e73c1ac12276e6b26ed7d7a5d8e19f4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6d486caa470fd09b26866bd3a3733e.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
的零点为
,且
,其中
,
,
.
(1)求
的最小值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2993cfbcef916c847b9809c960bd38f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7707af549293fd1f39f00082b9a35c.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/383c2dd19c49061b5e31f1df53419a09.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b30e834f617e546d3d72ab488344f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25840915299534473faaada6bc8e93e2.png)
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2023-06-06更新
|
186次组卷
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2卷引用:河南省创新发展联盟大联考2023届高三预测数学(理科)试题
名校
解题方法
3 . 已知函数
.
(1)求
的最小值;
(2)设
的最小值为m,且正实数a,b,c满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da25110dc1db7ed17fd0e1bd7a4fc7dc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72a8853053d87b30932142a79cdb417.png)
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2023-03-23更新
|
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3卷引用:河南省商丘市等2地临颍县第一高级中学等2校2022-2023学年高三下学期3月月考理科数学试题
河南省商丘市等2地临颍县第一高级中学等2校2022-2023学年高三下学期3月月考理科数学试题河南省商丘市等2地临颍县第一高级中学等2校2022-2023学年高三下学期3月月考文科数学试题(已下线)2024年高考全国甲卷数学(文)真题变式题16-23
名校
解题方法
4 . 设函数
.
(1)解不等式
;
(2)令
的最小值为
,正数
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2790f3349fae2119070e9a512717aa9e.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155834bf3412ebac9896c0cce9e2cb31.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ccb77ba53e986204cd158abb87bcbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4336688b5b9fb6d91400401756cc45e8.png)
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2024-01-03更新
|
898次组卷
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11卷引用:河南省郑州市宇华实验学校2024届高三下学期开学摸底考试数学试题
名校
解题方法
5 . 已知a,b均不为零,且满足
.证明:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04959523a28786962d51cfb43a8767d7.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262c7e1be492c379d1dc6121f2365612.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407795c98611395662d000e94471431e.png)
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2023-04-16更新
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3卷引用:河南省TOP二十名校2022-2023学年高三下学期四月冲刺考(一)文科数学试题
名校
解题方法
6 . 已知函数
.
(1)求不等式
的解集;
(2)若
的最小值为t,a,b,c为正实数,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8224db4a67bcd02832013efb83fc0da9.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a8a9f4f0d6590de86becb733bd1b6b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1791ca964fb19dcc1bb778d83fc91bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd782c94555b85c0b39263991f8ff3a4.png)
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2023-04-16更新
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3卷引用:河南省十所名校2022-2023学年高中毕业班阶段性测试(六)理科数学试题
名校
解题方法
7 . (1)设
,求证:
.
(2)求函数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e20c9127fd4eaaf75d2e0fe1f2fd11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f2b79d8305c4f65240416639587641.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231e0a8b895ab838b04201f28a537ba9.png)
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2023·河南·模拟预测
8 . 已
均为正数,且
,证明:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11f031092b3c1bd0ba1f4801287000b.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0aacd79eeb4af2848e98829a0b9041a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca3ec82030bdd1df3ff909b18f99ec6.png)
您最近一年使用:0次
解题方法
9 . 已知
,
,
均为正数,若
,求证:
(1)
;
(2)
.
![](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/751e274e9107d780c39ba9c49d6daefb.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4fc74e2eb107d48a17cab996341a0e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee5fba0ead98b52537e2768624ce141.png)
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2023-08-05更新
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2卷引用:河南省TOP二十名校2023届高三下学期3月调研模拟文科数学试题
名校
解题方法
10 . 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)
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2023-07-27更新
|
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8卷引用:河南省商丘市等2地2023届高三三模数学(理)试题