" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
u = ln x
du = 1/x dx
int (ln x)³ dx/x = int u³ du
= (1/4)u⁴ + c
= (1/4)(ln x)⁴ + c