anonymous
  • anonymous
help?!?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Luigi0210
  • Luigi0210
@Jhannybean
Luigi0210
  • Luigi0210
I have never gotten to series in calculus Lala, sorry.. but I called someone better for you :)
Jhannybean
  • Jhannybean
In a geometric series, the series will converge if \[\large |r|<1\]In this case, \[|-\frac{1}{2}| <1 \implies \frac{1}{2}< 1\] therefore the \[\large \sum_{n-1}^{\infty}-4(-\frac{1}{2})^{n-1} = C\]

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anonymous
  • anonymous
thank you @Luigi0210
Jhannybean
  • Jhannybean
Because it converges, your sum : \[\large S=\frac{a}{1-r}\] where \[\large r=-\frac{1}{2}\]
Luigi0210
  • Luigi0210
that stuff looks so familiar >.<
anonymous
  • anonymous
TRue that
anonymous
  • anonymous
so that is the answer?
anonymous
  • anonymous
yes
anonymous
  • anonymous
oh ok!
anonymous
  • anonymous
thanks
anonymous
  • anonymous
you think you could help with another?

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