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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 an2x3n1 class=

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02-06-2016

Hello,

[tex] a_{n}=2*3^{n-1}[/tex]
[tex] a_{n-1}=2*3^{n-2}[/tex]
[tex]\frac{a_{n}}{a_{n-1}}= \frac{2*3^{n-1}}{2*3^{n-2}}=3[/tex]

Answer B

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