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已知幂函数f(x)=xα的图象经过点(9,3),则f(100)= .
已知幂函数f(x)=xα的图象经过点(9,3),则f(100)= .
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直角梯形OABC,直线x=t左边截得面积S=f(t)的图象大致是( )
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A.
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B.
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C.
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D.
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设a∈
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,则使函数y=x
a的定义域是R,且为奇函数的所有a的值是( )
A.1,3
B.-1,1
C.-1,3
D.-1,1,3
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如果函数f(x)=x
2+bx+c对任意实数t都有f(2+t)=f(2-t),那么( )
A.f(2)<f(1)<f(4)
B.f(1)<f(2)<f(4)
C.f(2)<f(4)<f(1)
D.f(4)<f(2)<f(1)
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若0<x<1,则
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A.
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B.
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C.
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D.
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