No, it isn't. In a geometric sequence, there is a fixed number multiplied by a term to get the next term. This is an example of geometric sequence:
3, 6, 12, 24, 48, ...
Here, we can see that each term is multiplied by two to get the next term.
3*2 = 6 ; 6*2 = 12, and so on.
Thus the ratio of two consecutive terms must be equal:
6/3 = 12/6 ; 12/6 = 24/12
In the problem given above,
3/2 ≠ 5/3 ; 8/5 ≠ 12/8
Therefore, it's not a geometric sequence.
Hope this helps~ `u`
is the sequence 2,3,5,8,12 geometric? please explain why
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