2018高三·全国·专题练习
1 . 【2018安徽芜湖高三一模】已知直线
与双曲线
的渐近线交于
两点,设
为双曲线上任一点,若
(
为坐标原点),则下列不等式恒成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a07daa7893c0aa4313394369303561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3694b39a4b579d988034642bbbc7d3ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c72229b08c676c08a3c7258895375f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e6ef0e304ac363c47fc378fc3097cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cea76171edf17f7cab8d1bb55207ef.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019高三·全国·专题练习
2 . 若实数a,b,c满足loga2<logb2<logc2<0,则下列关系中正确的是
A.a<b<c | B.b<a<c |
C.c<b<a | D.a<c<b |
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3 . 若
,则下列不等式不正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f05930837039d924f84f12ec886733d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020高三·全国·专题练习
4 . (多选)若a<b<0,则下列不等式关系中,正确的有( )
A.![]() ![]() |
B.![]() ![]() |
C.![]() |
D.![]() ![]() |
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2011·重庆·一模
解题方法
5 . 已知
,
,
,则
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d1a5d0dc58a9acf61868ef6e59f8209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd020e51fd0171734f3dd85569608da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
A.![]() | B.![]() | C.![]() | D.不能确定 |
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20-21高一上·全国·单元测试
6 . 对于实数a,b,m,下列说法正确的是( )
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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13-14高三·全国·课后作业
7 . 如果a
+b
>a
+b
,则a,b应满足的条件是___ .
![](https://img.xkw.com/dksih/QBM/2014/3/31/1571592056414208/1571592061837312/STEM/87fbe674dedf46fa919e949b530f19cd.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2014/3/31/1571592056414208/1571592061837312/STEM/5d68451cc8374a96a67d880da840588c.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2014/3/31/1571592056414208/1571592061837312/STEM/5d68451cc8374a96a67d880da840588c.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2014/3/31/1571592056414208/1571592061837312/STEM/87fbe674dedf46fa919e949b530f19cd.png?resizew=17)
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19-20高一·全国·课后作业
8 . 不等式组
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d326e8d33fb193f1d1e6d387f5551f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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19-20高一·全国·课后作业
9 . 设a>b>0,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee27911db1b452b972824b024b499b8.png)
___
.(用>,<,≥,≤填空)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee27911db1b452b972824b024b499b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af0b551563b37ec3f87f9583dc698a6.png)
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