y=f(x)满足f(x+2)=-f(x),当x∈(-2,2]时,f(x)=x2-
题型:选择题
问题:
y=f(x)满足f(x+2)=-f(x),当x∈(-2,2]时,f(x)=x2-1,则f(x)在[0,2011]上零点的个数为[ ]
A.1 005
B.1 006
C.2 009
D.2 010
y=f(x)满足f(x+2)=-f(x),当x∈(-2,2]时,f(x)=x2-1,则f(x)在[0,2011]上零点的个数为[ ]
A.1 005
B.1 006
C.2 009
D.2 010