7.1 | Integration by Substitution


The Substitution Rule: If \(u = g(x) \) is a differentiable function whose range is an interval \(I\) and \(f\) is continuous on \(I\), then
$$
\int f(g(x)) g'(x) \; dx = \int f(u) \; du
$$

E 7.1 Exercises