1.If f(x+y)=f(x)f(y)f(x + y) = f(x)f(y)f(x+y)=f(x)f(y) and ∑x=1∞f(x)=2\sum_{x=1}^{\infty} f(x) = 2∑x=1∞f(x)=2, x,y∈Nx, y \in \mathbb{N}x,y∈N, where N\mathbb{N}N is the set of all natural numbers, then the value of f(1)f(1)f(1) isLogin to continueOnly logged in users canattempt or see the solution.
