19. For f(x) = 3x + 2, evaluate the Riemann sums: (a) f (x;) Ax where Ax = 2, TO = 3 2 (b) > f (x;) Ax where Ax = 3, 10 = 7 i=1 (c) >f (x;) Ax where Ax = 0.5, 20 = -5 i= 1 19. (a) 160 (b) 219 (C) -18.5 Share Screen Leave ADY 20 W# O dele W E R Y U O P S D F G H K