(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

heres the equations: http://img407.imageshack.us/img407/738/untitledzk8.jpg [Broken]

there are two equations, a and b.

2. Relevant equations

3/n^2 for a,

and 1/n for b.

3. The attempt at a solution

Using the limit comparison test, i don't understand why to use 3/n^2 and 1/n for these equations.

It was explained that we use the largest n in the numerator and denominator, but what we picked, clearly isn't the largest???

please help. thanks.

also, how does a converge, and b diverge??

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# Limit comparison test.

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