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Write an explicit formula for an, then the nth term of the sequence 4, 12, 36, ....

User Rowanu
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The given sequence is 4, 12, 36


\begin{gathered} a(n)\text{ = a }\cdot r^{n\text{ - 1}} \\ \text{The common ratio of the sequence is 3} \\ \text{The first term = 4} \\ a(n)\text{ = 4 }\cdot3^{n\text{ - 1}} \end{gathered}

User Tom McQuarrie
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