Use integration by parts to evaluate 4x5 . In x dx. O a) -4x 6 (6 In a + 1) 6 + C O b) 4x5 (5 In a + 1) 5 + C c) 426(6 In xx + 1) + C 36 O d) 4x5 (5 In x - 1) + C 25 O. e) 4x6 (6 In x - 1) 36