JEE Main 2021 Mathematics question
Let f : R R satisfy the equation f(x + y) = f(x). f(y) for all x, y R and f(x) 0 for any x R. If the function f is differentiable at x = 0 and f'(0) = 3, then is equal to .
Answer: 3
Let f : R R satisfy the equation f(x + y) = f(x). f(y) for all x, y R and f(x) 0 for any x R. If the function f is differentiable at x = 0 and f'(0) = 3, then is equal to .