#1201: Integration by Parts

XKCD comic, described below.
Transcript

A guide to integration by parts: Given a problem of the form: ∫f(x)g(x)dx = ? Choose variables u and v such that: u = f(x) dv = g(x)dx Now the original expression becomes: ∫udv = ? Which definitely looks easier. Anyway, I gotta run. But good luck! 2)x^2, which is easy to remember. Oh, and add a '+C' or you'll get yelled at.}}

If you can manage to choose u and v such that u = v = x, then the answer is just (1/2)x^2, which is easy to remember. Oh, and add a '+C' or you'll get yelled at.

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