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Limits...

Calculus Level 3

\[\large \lim_{n \to \infty} \sum_{m=1}^n \tan^{-1} \frac 1{1+m+m^2} = ?\]

\(\)

Note: \(\tan^{-1} x \in \left(-\dfrac \pi 2, \dfrac \pi 2 \right)\)

\[\frac \pi 2\] \[\frac \pi 4\] Does not exist None of the others

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Excel in math and science

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by Trishit Chandra

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