38-40 need help asap

38. J x2 cos(x3) dx = a) - = sin(x3) + C b) = sin(x3) + c c) - sin(x3)+C d) 3 sin(x3) + C e ) 2 sin + C 39. Rewrite the integral JV3x - 1 dx , using the substitution u = 3x - 1 (e WIH S'+, Vudu b) 3 So Vudu c) = S vudu 4 d) 3 S Vu du e ) 3 5 Vu du 40. The acceleration function (in m/s?) and the initial velocity are given for a particle moving along a line. Find the distance traveled during the given time interval. a(t) = t + 5, v(0) = 4,0Sts8 a) 277 5m b) 2723 m c) 242 3 m d) 2062m e) 2005 m