“Tic-tac-toe” is an alternative way of approaching integration by parts

lesson notes:11 by parts – alternative

When integrating a product of two functions and neither is the derivative of the other

lesson notes:05 by parts

An alternative working out for integration by parts questions

lesson notes:11 by parts – alternative

The “reverse product rule”, integration by parts

lesson notes:05 by parts

Doing integration by parts via a tabular method

lesson notes:11 by parts – alternative