Formulae on Indefinite Integration



In order to choose the best u for integration by parts, use mnemonic device LIPET. Logarithms are the best choice, followed by inverse trigonometric functions, then polynomials, then exponential functions, and lastly trigonometric functions. This is due to the fact that logarithms and inverse trigonometric functions are difficult to integrate, and thus would serve better as u since you will be deriving it.


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