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Common Ratio

Concept

Geometric Sequence

A sequence where each term is multiplied by the same number, to get the next term is a geometric sequence. The number can be any non-zero real number. In the following example, is making each term twice as large as the previous.

geometric sequence

Similar to other sequences, the first term is usually called the second and so on.

geometric progression

The number is called the common ratio of the sequence.