CK12 Calculus - Single Variable

We take the differentialof and the simplestantiderivativeof :

Substitutingbackinto the formula,

We havemadethe right choicebecause,as you can see, the new integral is definitely
simplerthan our originalintegral.Integrating,we finallyobtainour solution

Example3:

Evaluate.
Solution:

Here,we only haveone term, We can alwaysassumethat this term is multipliedby :

So let and Thus and Substituting,