1 . 已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d360794828cac510eae1d40d88b64384.png)
________
(填“>”或“<”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d480ad03519477fb6b332cc40904a462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d360794828cac510eae1d40d88b64384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef629f8ffe51b961b5fa1ebe0c4b7641.png)
您最近一年使用:0次
解题方法
2 . 已知函数
,若
恒成立,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f104e040357cc63280ea460e81744e96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561480e3d3809613c33ce1f9c8890510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 下列不等式中,不成立的是______ .(填序号)
①若
,则
;②若
,则
;③若
,则
;
④若
,则
;⑤若
,若
;⑥若
,则
;
⑦若
,
,则
;⑧若
,
,则
.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f7c54faca6eac8af5309942062058d.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a44d971fdc197191b4a7c2b3716e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f7c54faca6eac8af5309942062058d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb56a9e042c345efb64b91da18ac4343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb54b1b3617ebc502cb44194cbcd1dc.png)
⑦若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663408ffd10ad082002513bd472118c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0dfded1758cbd9a49da73deaa741609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cbc322861846709c08c7f1da746848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e316c2fc9b4184fa16aa8a37903c7d.png)
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解题方法
4 . 若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21fba7630a6ec84605934d77a203607.png)
______ 0.(填“
”、“
”或“
”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21fba7630a6ec84605934d77a203607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
您最近一年使用:0次
5 . 若a和b是任意非零实数,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2add5631b7b572354fa4aa51930dbc29.png)
您最近一年使用:0次
6 . x为实数,且不等式
有解,则实数m的取值范围是________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd52089c2d04d2ddc2dc7eb3b3c7f288.png)
您最近一年使用:0次
名校
解题方法
7 . 已知
,利用等式的性质比较
与
的大小关系:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
________
(填“
”“
”或“
”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b487d591f95d5d1c74ab98ce9ee0e22b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
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2022-11-25更新
|
238次组卷
|
3卷引用:1.3 不等式 测试卷-2022-2023学年高一上学期数学北师大版2019必修第一册
8 . 已知平面向量
,
,
满足
,且
,则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b78b01ba60950fcabddb5a0c12f9011.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1d40f1a53f18e272e88834e47b3136a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26abac73b9cb1af5c5d8e8c2dd136bbb.png)
您最近一年使用:0次
2022-11-15更新
|
992次组卷
|
5卷引用:重难点:平面向量综合检测(培优卷)
重难点:平面向量综合检测(培优卷)单元测试B卷——第六章 平面向量及其应用四川省资阳市2023届高三上学期第一次诊断性考试文科数学试题(已下线)易错点18 不等式选讲(已下线)第11讲 平面几何的向量方法
2023高三·全国·专题练习
解题方法
9 . 设
,
,则s与t的大小关系是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1990fa70d7761a1e24eabf8216328a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aea4e35ccf60e9ce6b2a8d04fb69196.png)
您最近一年使用:0次
名校
解题方法
10 . 设
,
,记
,
,
分别为a,b的算术平均数、几何平均数、调和平均数,古希腊数学家帕波斯于公元4世纪在其名著《数学汇编》中研究过
时A,G,H的大小关系,则A,G,H中最大的为______ ,最小的为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eafe09fa892efa1d5f25f4c19cc298d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7538eabbe59e268c4768fec1e6f7319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92489dfe55a11464ed1cdbafb2984d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
您最近一年使用:0次
2022-08-30更新
|
526次组卷
|
5卷引用:2020年湖北省普通高中学业水平合格性考试数学试题