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Rahul J.Posted: Mon 23 May 2016

IIT JEE

Maths

27 May 2016 02:01

Gold Medalist in B.Sc., IIT Kanpur Alumini , PhD. Maths, 4+ years experience with BE students

Put x=0 and y=0 in the given equation. Get [f(0)]^2-f(0)=0 or f(0) [f(0) -1] =0, now since f(0) !=0, f(0) = 1. now put x=0 and y=7, to get f(7) = 8.

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