anonymous
  • anonymous
Why does this series converge by the integral test? Problem inside.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[\sum_{n=0}^{\infty}n e ^{-n ^{2}}\]
anonymous
  • anonymous
I keep getting a final answer of \[(-1/2) e^{-b ^{2}} + 1/2 e^{-0^{2}}\]where b is going to infinity. I would think that would come out to infinity plus 1/2, which would be infinity and cause the whole thing to diverge. However, according to problem (d) on this study sheet I found, the answer converges. Something is wrong with my algebra. Help please? http://www.hillsdalesites.org/personal/dmurphy/Kclasses/math113/review2solns.pdf Actually, I think I just solved my own problem. Would it be 0 + 1/2 because the \[^{-b ^{2}} \] moves e to the denominator and thus makes that part go to zero?

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