Decide if the following function f(x) is differentiable at x = 0. Try zooming in on a graphing calculator (like desmos or geogebra), or try calculating the derivative f'(0) from the definition. f ( 20 ) = x2 sin (2) if x + 0 if x = 0 (a) Is f differentiable at a = 0? (b) If f is differentiable at x - 0, what is its derivative? f' (0) (If it's not differentiable, enter dne ) Select a blank to input an