IXL - Write a recursive formula: geometric sequences (Algebra 1 practice)

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Which recursive formula can be used to define this sequence for

n

>

1

?

1, 2, 4, 8, 16, 32, ...

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Not feeling ready yet? These can help:

U.3Geometric sequences

U.6Identify a sequence as explicit or recursive

U.5Evaluate recursive formulas for sequences

Lesson: Geometric sequences