ExplainItLikeImFive
  • ExplainItLikeImFive
Write a formula for the general term (the nth term) of the geometric sequence.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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ExplainItLikeImFive
  • ExplainItLikeImFive
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anonymous
  • anonymous
how do you get from the first to the second term?
anonymous
  • anonymous
wow is that ugly! look at those little minus signs i almost missed them

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More answers

ExplainItLikeImFive
  • ExplainItLikeImFive
I dont know where to begin.
anonymous
  • anonymous
what do you multiply \(\frac{1}{2}\) by to get \(-\frac{1}{10}\) ?
ExplainItLikeImFive
  • ExplainItLikeImFive
-1/5
anonymous
  • anonymous
yeah... they're not very clear.
anonymous
  • anonymous
ikr
anonymous
  • anonymous
yeah you are right, it is \(-\frac{1}{5}\)
anonymous
  • anonymous
so each term is the previous term times \(-\frac{1}{5}\)
anonymous
  • anonymous
\(a_n\) is the \(n\)th term the term before that, i.e. the previous term, is \(a_{n-1}\)
anonymous
  • anonymous
therefore you could say \(a_n=-\frac{1}{5}a_{n-1}\)
anonymous
  • anonymous
as usual, the answer is C it is always C
ExplainItLikeImFive
  • ExplainItLikeImFive
Thank you very much.
anonymous
  • anonymous
yw
Loser66
  • Loser66
to me, it is \[a_n = \frac{1}{2}(-\frac{1}{5})^{n-1}\]

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