27-34 Use the form of the definition of the integral given in Theorem 4 to evaluate the integral. 4 Theorem If f is integrable on [a, b], then 27. 3x dx [ x dx 29. (5x + 2) dx 30. * (6 - x2) dx ['f(x) dx = lim E f(x.) Ax 1-200 i=1 31. (3x2 + 7x) dx 32 . ( 4x 2 + x + 2 ) dx b - a where Ax = and xi = a + iAx 33. (x3 - 3x2 ) dx 34. (2x - x3) dx n