解题方法
1 . 证明下列结论.
(1)已知
,试用综合法证明:
;
(2)已知
,且
,试用分析法证明:
.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf04fe8895c10624636a815d3d752975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da537e5284dc9786845fca39a9ca913.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8954db00a1de8263871cf3e26965eb4b.png)
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2 . (1)求证:
(其中
)
(2)已知
、
、
、
都是实数,且
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2753dee1cf2935ce2f46ef406fc0e15a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a671406a5442a3088a4ee1d064114a.png)
(2)已知
![](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/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04959523a28786962d51cfb43a8767d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c70a92f426264c24f324cab3dc8017f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0950c6ba9c0ff6b53f9231a7eec44d1.png)
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名校
3 . 设
是等差数列,
是等比数列,且
.
(1)求
与
的通项公式;
(2)设
的前
项和为
,求证:
;
(3)若
,且数列
的前
项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f6eba282321f5d17e3de9b6544e9f6f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/702b31070b4001b47426d73831e585b5.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc79e006b192782170fdb16384ba5879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0022c073e919d163032a4f5923e893ef.png)
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4 . (1)已知
,求证:
.
(2)已知
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed105ddc16a6a83ff5126fdc773b3488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e3bbf56c264002fe8afc45a864f5bd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4017ae27c7e8d9a278cdae696bd93c88.png)
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2022高一·全国·专题练习
名校
5 . 已知
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09506fb301b62b82e8ce6b5eaf9c988f.png)
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2023-05-23更新
|
258次组卷
|
3卷引用:专题2.1 等式性质与不等式性质-重难点题型精讲-2022-2023学年高一数学举一反三系列(人教A版2019必修第一册)
(已下线)专题2.1 等式性质与不等式性质-重难点题型精讲-2022-2023学年高一数学举一反三系列(人教A版2019必修第一册)青海省海南藏族自治州高级中学2022-2023学年高二下学期期末考试数学(文)试题广东省佛山市顺德市李兆基中学2023-2024学年高一上学期10月月考数学试题
2022高一·全国·专题练习
6 . 证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead56bb8f5e7a72e9f8640e795caf68d.png)
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7 . (1)用综合法证明:设a,b均为正实数,且
,则
;
(2)试比较下列各式的大小(不写过程):①
与
;②
与
;通过上式请你推测出
与
(
且
)的大小,并用分析法加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98941347dd7ac01f5e63a6c5930dd5fa.png)
(2)试比较下列各式的大小(不写过程):①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d37b9f0421c90b1033dae9e3362c8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d1df3af8b2e212bc6d114959139823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d1df3af8b2e212bc6d114959139823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5246364ca8d76ddd707a001fe98cbb5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4457e63251cc30112b0146f99e71eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e5ca35ca665d421c919c97601539bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a40142c84be68ee2918c3a8303388c.png)
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2023-02-04更新
|
75次组卷
|
2卷引用:河南省郑州市励德双语学校2021-2022学年高二下学期第一次月考数学(理)试题
8 . (1)求证:
;
(2)若方程
和
中至少有一个方程有实数根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376853ee76347b32132a8a7feedbf973.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589dc3fa67706f47d229e0778d901793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bab67a391ba2678e91073f442b26425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 欲证不等式
成立,只需证( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de1e64a90a2f0c8e9425285e416e4c1c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
10 . 已知数列
满足
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cae75fa078f0961c2966220d895b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92aa912f0e077e18b40bcb2d35de084.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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