The second derivative of a function is given by f"(x) = xcosx. How many points of inflection does f have on the interval (-2TT, TT)? 0 3 0 4 0 5 0 6Given f'(x) = 10x4 + 16x3, determine the x-value(s) where a point of inflection exists on the graph of f. X = _ 6 and x = 0 5 O X =. 6 5 Oo O X =Let f be the function with derivative defined by f'(x) = cos(x2) on the interval -2