1.

Given ε>0. Thena) f(a)f(b)>0b) f(a)f(b)=0c) f(a)f(b)=1d) f(

A. f(a)f(b)>0b) f(a)f(b)=0c) f(a)f(b)=1d) f(a)f(
B. >0b) f(a)f(b)=0
C. f(a)f(b)=1
D. f(a)f(b)<0
Answer» E.


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