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对于函数y=f(x),我们把使f(x)=0的实数叫做函数y=f(x)的零点,设x...
对于函数y=f(x),我们把使f(x)=0的实数叫做函数y=f(x)的零点,设x
是函数f(x)=x
2-|log
2x|的一个零点,则x
所在的一个区间是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183424673816982/SYS201310241834246738169008_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183424673816982/SYS201310241834246738169008_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183424673816982/SYS201310241834246738169008_ST/2.png)
D.(1,+∞)
考点分析:
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已知向量
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,
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满足|
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|=|
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|=2,
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•
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=0,若向量向量
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与
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-
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共线,则|
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+
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|的最小值为( )
A.
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B.1
C.
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D.
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函数f(x)是定义在R上的增函数,y=f
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-1(2)=b,f
-1(0)=c,则a,b,c的大小关系为( )
A.c>a>b
B.b>c>a
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