engineering recuitment ISRO Scientific Assistant Physics 2020 Mathematics Differential Calculus Evaluation of derivatives
Let f(x + y) = f(x) f(y) and f(2) = 4 for all x, y ϵ R, where f(x) is continuous function. What is f' (2) equal to?
1
2 ln 2
2
4 ln 2
3
ln 8
4
2 ln 3