Chapter 5.04: Indefinite Integrals and the Net Change Theorem

Remember to check your answers by differentiating, when applicable.

Remember to avoid some common mistakes:
* still writing the integral sign after taking the antiderivative
* dropping the integral sign without actually taking the antiderivative
* plugging in x=0 for e^x or cos(x) and getting 0 instead of 1


#2 (here they are just asking you to check by differentiating, not to do the
integral in the first place! You might want to use a half-angle trig identity,
at the end of Reference Page 2 on the very first page of the textbook).

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#34 (graph first! even more than usual)
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#64 -- be sure to do an LB, UB, and guess
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