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Can I Cancel Them In Pairs?

Calculus Level 3

\[\large \lim _{ x\to -1^-} \left( \sum _{n=0}^\infty x^{-n} \right) =\, ?\]

\[-1\] \[-\frac { 1 }{ 2 }\] \[0\] \[\frac { 1 }{ 2 }\] \[1\] Limit does not exist

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by Jonas Katona

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