Question: If f is a polynomial function satisfying 2+f(x).f(y)= f (x)+f(y)+f(xy)Vx, y e R and if (2)=5 then the value of S(S(1)) is EX7. Key.

If f is a polynomial function satisfying 2+f(x).f(y)= f (x)+f(y)+f(xy)Vx, y e

If f is a polynomial function satisfying 2+f(x).f(y)= f (x)+f(y)+f(xy)Vx, y e R and if (2)=5 then the value of S(S(1)) is EX7. Key. Sol. 2+f(x).f (y)= f (x)+f(y)+f(xy)x, y e .() f f (2)= 5 .......

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