已知a>0且a≠1,关于x的不等式a
x>1的解集是{x|x>0},解关于x的不等式
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(Ⅱ)求f(x)的值域.
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已知函数f(x)=x
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(2)若对任意x∈[1,+∞),f(x)>0恒成立,试求实数a的取值范围.
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已知定义在区间上的函数f(x)=
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为奇函数且f(
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(1)求实数m,n的值;
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设函数f(x)=
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,则f(f(-
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))=
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下列五个函数中:①y=2
x;②y=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103095925821524523/SYS201311030959258215245014_ST/0.png)
;③y=
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;④y=
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;⑤y=cos2x,当0<x
1<x
2<1时,使
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103095925821524523/SYS201311030959258215245014_ST/3.png)
恒成立的函数是
将正确的序号都填上).
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