If f(x + y) = f(x) f(y) and _ x=1 ^ f(x)=2, x, y ∈ N, where N is the set of all natural numbers, then the...

Question

If f(x + y) = f(x) f(y) and _ x=1 ^ f(x)=2, x, y ∈ N, where N is the set of all natural numbers, then the value of f(4) f(2) is -

Accepted Answer

(C)

JEE Main 2020 Mathematics question