Just as talked about in stewart in strategy for integration.(adsbygoogle = window.adsbygoogle || []).push({});

I found notes online that also say:

g(x) >= f(x) >= 0, then you want to prove convergence on g. If f(x) >= g(x) >= 0, then you want to prove divergence on g. Im pretty sure I follow the logic here, but how exactly does one pick g?? I've been working on hours picking g that results in the opposite of required case (ex. divergence for g(x) >= f(x) >= 0) which does not then prove anything about f(x)!! :(

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# Comparison theorem.

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