Help with reducing a trigonometric integral problem...

hammy

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Jul 4, 2011
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Hello again, friends. I'm on the last step of a integration problem and I have an answer of

2arctan(infinty/2)

I think that is equal to pi, but I'm not sure. Can anyone give me clarification?
 
hammy said:
Hello again, friends. I'm on the last step of a integration problem and I have an answer of

2arctan(infinty/2)

I think that is equal to pi, but I'm not sure. Can anyone give me clarification?

Why not ?/2 or 3?/2 or (2n+1)?/2?

Without looking at the original problem, and your work - we cannot tell.
 
Are you working with improper integrals?

After your integration, did you have something like this?

\(\displaystyle \lim_{b \to \infty} (2\tan^{-1}(b/2))\)

Because, yes, that does equal \(\displaystyle \pi\)

I'm hesitant in replying though. Subhotosh Khan is a lot smarter than me, and he doesn't like something. :?
 
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