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Mathematics 17 Online
ladaholm:

A geometric sequence is defined recursively by an = 5an-1. The first term of the sequence is 0.45. What is the explicit formula for the nth term of the sequence?

justasoftie:

Welcome to QC! I can't help with this Question, but @Vocaloid may be able to

Vocaloid:

\[a_{n}= a_{1}*r^{n-1}\] is the explicit formula a1 is already given (0.45), so the only thing you need to find is r if you look at the formula an = 5*a_{n-1} do you have any ideas what r might be?

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