摘要:9.已知f (x) = (x-1)(x-2)-(x-2006).则f ′等于 ( ) A.0 B.2006 C.2005! D.2006!
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已知定义在R上的函数f(x)满足,且f(-2)=f(-1)=-1,f(0)=2,则f(1)+f(2)+…+(2006)+f(2007)=
[ ]
A.-2
B.-1
C.0
D.1
已知定义在R上的函数f(x)满足,且f(-2)=f(-1)=-1,f(0)=2,则f(1)+f(2)+…+f(2006)+f(2007)=
[ ]
A.-2
B.-1
C.0
D.1