1.

Consider a real valued function f(x) satisfying 2f(xy)=(f(x))^(y)+(f(y))^(x) AA x , y in R and f(1)=a where a != 1 then (a-1)sum_(i=1)^(n) f(i)=

Answer»

`a^(n+1)+a`
`a^(n+1)`
`a^(n+1)-a`
`a^(n+2)-a`

ANSWER :C


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