Mathematics for IGCSE & O level - Sequences (Section 3 - No. 19)

Which of the following have a common *ratio*?

2, 4, 8, 16, ...

1, 3, 5, 7, ...

3, 6, 9, 12, ...

1, 4, 9, 16, ...

Explication

A geometric sequence is defined by a common ratio.

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