A geometric sequence is defined recursively by an = 15an-1. The first term of the sequence is 0.0001. Which of the following is the explicit formula for the nth term of the sequence?
an = 15an-1.
So r =15 ; First term, a = .0001
Explicit formula =ar^(n-1)
= .0001 (15)^(n-1)
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Which of the following recursive formulas represents the same geometric sequence as the formula an = 4 • 4n - 1?
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