Let f(x): -2x+4x x < 0, = 4x2 5 - x 0. a. According to the definition of the derivative, to compute f'(0), we need to compute the left and right limits. Give an exact answer if a limit is a number. Otherwise, enter - or if a limit is infinite, or enter DNE if a limit does not exist in another way. Left: lim x-0- 5 Right: lim 4x x0+ = -infinity = 0 b. We conclude the following. Enter DNE if the value does not exist. f'(0) =DNE