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函数f(x)满足f(x)•f(x+2)=13,若f(0)=2,则f(2010)=...
函数f(x)满足f(x)•f(x+2)=13,若f(0)=2,则f(2010)=( )
A.13
B.2
C.
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D.
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3x|在区间[a,b]上的值域为[0,1],则b-a的最小值为( )
A.
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B.
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C.1
D.2
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△ABC的三内角A,B,C所对边的长分别为a,b,c设向量
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,
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,若
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,则角C的大小为( )
A.
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B.
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C.
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D.
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函数
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,若f(-4)=f(0),f(-2)=-2,则关于x的方程f(x)=x的解的个数为( )
A.1
B.2
C.3
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下列函数中,在其定义域上是减函数的是( )
A.f(x)=-x
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B.
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C.
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D.f(x)=ln(2-x)
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已知非零向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100020168521697/SYS201311031000201685216002_ST/0.png)
与
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满足
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且
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=
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. 则△ABC为( )
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B.直角三角形
C.等腰非等边三角形
D.三边均不相等的三角形
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