Mathematics for IGCSE & O level - Sequences (Section 4 - No. 25)

Which of the following is an example of a geometric sequence?

1, 2, 3, 4, ...

2, 4, 6, 8, ...

1, 3, 9, 27, ...

1, 4, 9, 16, ...

解释

Geometric sequence has a common ratio.

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