The most powerful integration technique there is… go watch the video to learn more! In simple terms, the integration by parts method is a formula derived from rearranging the product rule in a more convenient way which allows us to integrate more complex functions. We choose our u and dv/dx by using the acronym LIATE, which stands for Logarithms, Inverse, Algebraic, Trigonometric and Exponential functions. This allows us to integrate our function and then we can evaluate it using the limits give