Integration Techniques

Integration by parts

Integration by parts is mostly used when we need to integrate the multiplication of two functions. It allows to eliminate one of the functions from the integration.

Integration by parts in examples

Most of the cases when we have the multiplication of two functions are solved using integration by parts, where we denote one function as "u" and another one as "dv". But how we should decide which one should be "u" and which one is "dv"? In this video lecture we will figure out some tips and general algorithm of using the integration by parts.

Trigonometric Integration 1: sine & cosine

• power of cosine is odd

• power of sine is odd

• powers of both are even