If 2f(xy)=(f(x))y+(f(y))x ∀ x,y∈R and f(1)=3, then the value of 10 – InterviewSolution

1.	If 2f(xy)=(f(x))y+(f(y))x ∀ x,y∈R and f(1)=3, then the value of 10∑r=1f(r) is equal to
Answer» If $2 f (x y) = {(f (x))}^{y} + {(f (y))}^{x} \forall x, y \in R$ and $f (1) = 3,$ then the value of $10 \sum r = 1 f (r)$ is equal to

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