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What is the explicit formula for the sequence 18, 9, 9/2, 9/4, 9/8

What is the explicit formula for the sequence 18, 9, 9/2, 9/4, 9/8
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What is the explicit formula for the sequence 18, 9, 9/2, 9/4, 9/8

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User Dvsakgec
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8.7k points

1 Answer

4 votes
an = 18(1/2)^(n-1)

Alternatively, you could also do:

an = 36(1/2)^n
answered
User Stevens
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8.0k points
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