Substitution with Definite Integrals Problem 1 (Calculus 2)

How do we use substitution with a definite integral? This is simple: use your substitution to convert the limits! In other words, use the substitution to convert from x limits to u limits. This allows you to not worry about plugging u back in terms of x. This is especially important for anyone moving on to multivariable calculus, where coordinate transformations are used.

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