Brinda Roy wrote:
Q1. f(a+b) = f(a) + f(b) for all the +ve numbers a & b ?
A. f(x)=x^2
B. f(x)=x+1
C. f(x)=\sqrt{'x'}
D. f(x)=2/x
E. f(x)=-3x
Discussed here: https://gmatclub.com/forum/for-which-of ... 24491.html
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