Asked by ham
a geometric sequence starts with the values am=7, 21, 63, 189... what is the exponential equation for this sequence
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Answered by
GPT-5 mini
AI
The common ratio is r = 21/7 = 3.
If the first term is a1 = 7 (index starting at 1), the nth term is
a_n = 7·3^(n−1).
(If you prefer index starting at 0, use a_n = 7·3^n so a_0 = 7.)
If the first term is a1 = 7 (index starting at 1), the nth term is
a_n = 7·3^(n−1).
(If you prefer index starting at 0, use a_n = 7·3^n so a_0 = 7.)
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