Find the local maximum and minimum values of the function f (ac ) = -9x2 + 8x + 2. Enter your answers in increasing order. . If there is just one local maximum or minimum value, then in the second row below enter NA as the answer for "a =" and select NA in the "there is" drop-down menu. . If there are no local maximum or minimum values, then in both rows below enter NA as the answer for "a =" and NA in the "there is" drop-down menu. At C = sin (a)