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02-06-2016
Mathematics

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Which of the following recursive formulas represents the same geometric sequence as the formula an=2x3n-1

Which of the following recursive formulas represents the same geometric sequence as the formula an=2x3n-1 class=

Verified Answer :

02-06-2016

Hello,

\(a_{n}=2*3^{n-1}\)
\(a_{n-1}=2*3^{n-2}\)
\(\frac{a_{n}}{a_{n-1}}= \frac{2*3^{n-1}}{2*3^{n-2}}=3\)

Answer B

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