In these series of videos (U-substitution) you introduce the treatment of the derivative operators (dx, du, etc) as fractions. You specify that they really are not, but treat them like that anyway.

This top one, you still didn't mess up by just setting u equal to sine of 5x, we just have to do an extra substitution in order to work it through all the way. And I was able to do this video despite …

Key takeaway: Sometimes we need to multiply or divide the entire integral by a constant, so we can achieve the appropriate form for u -substitution without changing the value of the integral.

Video transcript - [Tutor] What we're going to do in this video is give ourselves some practice in the first step of u substitution, which is often the most difficult for those who are first learning it …

When using 𝘶-substitution in definite integrals, we must make sure we take care of the boundaries of integration.

The substitution method is a technique for solving a system of equations. This article reviews the technique with multiple examples and some practice problems for you to try on your own.

Explore integrals in calculus, including basic rules, techniques, and applications, with Khan Academy's comprehensive lessons and practice exercises.

Integrating with u-substitution Learn 𝘶-substitution intro 𝘶-substitution: multiplying by a constant

Well we just said u is equal to sine of x, you reverse substitute, and you're going to get exactly that right over here. So when we talk about the reverse chain rule, it's essentially just doing u …

Unit 2: Integration techniques Unit mastery: 0% Integrating with u-substitution Integrating using long division and completing the square Integrating using trigonometric identities …