# Definition of sequence in geometric progression

In this week's "Clever 4-term Sequences" (from level 3 of Algebra and Number Theory), is the sequence (1,4,2,8) valid or all terms have to be in the order of the progression like (1,2,4,8) or (8,4,2,1)?

Note by André Macedo
5 years, 4 months ago

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no only sequences which are arranged in order of geometric progression must be taken into account

- 5 years, 4 months ago

(8,4,2,1) and (1,2,4,8) are distinct geometric progressions.

- 5 years, 4 months ago