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Which of the following is a geometric sequence?

A. 1, 1, 2, 3, 5, ...
B. 1, 1/2, 1/4, 1/8, ...
C. 7, 4, 1, -2, ...
D. 2, 4, 6, 8, ... ​

1 Answer

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Answer:

B

Explanation:

One is multiplying by 1/2

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