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1 . 设
,那么
的大小关系是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348c2f26f79328f78728dce41804ce8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
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2016-12-04更新
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479次组卷
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2卷引用:2015-2016学年福建福州五校高二下期中文科数学试卷
2014高三·全国·专题练习
2 . 已知a,b,c∈R,a+2b+3c=6,则a2+4b2+9c2的最小值为________ .
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3 . 若关于
的不等式
的解集为
,则![](https://img.xkw.com/dksih/QBM/2016/5/31/1572672611704832/1572672617324544/STEM/ed614865082a4ef881a92a8597c7b5b9.png?resizew=25)
_______ .
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572672611704832/1572672617324544/STEM/aa422142235b49e4b299457f13148d8c.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572672611704832/1572672617324544/STEM/8d0226fd7b7440bf9b2f22bf11af0cf5.png?resizew=73)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572672611704832/1572672617324544/STEM/0a52f0e922564daca7c70b88c6970974.png?resizew=104)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572672611704832/1572672617324544/STEM/ed614865082a4ef881a92a8597c7b5b9.png?resizew=25)
您最近一年使用:0次