Page 25 - Calculus for the Clueless, Calc II
P. 25
You do not have to multiply out the last step, but I wanted to show you that doing the problem two ways gives
the same answer. Also note that you do not have to do the problem two ways, and I am a little crazy to try.
Our two answers check. Now that I've done it two ways to show you that both ways give the same answer, I
will never, never do it twice again!!!!!!!!
The last integration by parts, unless I think of another, is the integral of sec x. I think it more properly belongs
3
later (Example 10).
The next section involves integrals of trig functions. It is absolutely essential that you know the trig identities
and integrals we listed before.
m
n
Let's consider integrals of the form sin x cos x.
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Example 5—
