2
$\begingroup$

I need help better understanding how, and why integration by changing the variable works (I've seen it's related to the derivative of a composite function $f(g(x))$), and generally tips and tricks, an intuitive understanding and exercises.

I sort of understand it, but when it comes to evaluate such an integral, I'm very sluggish and it seems harder than it should be.

LE: My mistake, I originally said integration by parts, but I meant variable change.

  • 2
    Our comments still apply, even with your edit: it takes some amount of practice to recognize which substitutions should be done to an integral.2012-08-14

1 Answers 1

0

Hint: How about you take a look here http://en.wikipedia.org/wiki/Integration_by_parts.

  • 0
    agreed to this comment.2012-08-14