Grade 10Differential Calculus
If f(x1 + x2 + ... + xn) = f(x1)f(x2)...f(xn) for all x belongs to real; and f(0) = 2 and f(m) > 0 where m,n belong to natural and m is even and n is odd.
Evaluate lim ((f(x)-1)/x) where x tends to zero.
