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August 30, 2015

Homework Help: Calculus I

Posted by Emily on Monday, January 30, 2012 at 11:52pm.

We're reviewing limits from the previous chapter, but I'm still having some difficulty with some problems:

lim tan(pi(x/4)) as x-> -7

lim (x^2 - x^3(cos(1/x))/3x^2 as x-> 0

I know the answer to the first problem is 1 and to the second problem it's 1/3 but I'm not sure how to get these answers. Any help is greatly appreciated! :)

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