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What is the recursive formula for the geometric sequence 2, 6, 18, 54, …?
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What is the recursive formula for the geometric sequence 2, 6, 18, 54, …?

User Brandon Parker
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2 Answers

4 votes

Answer:

a1 = 2; an = an–1 ∙ (3) for n ≥ 2

Explanation:

User Occulus
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4.4k points
3 votes
an = 2* 3^n-1
………………………
User Andreas Eisele
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4.1k points
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