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lisov135 [29]
3 years ago
9

Determine if the sequence is geometric. If it is, find the common ratio. ( -4, 12, -36, 108, ... )

Mathematics
1 answer:
Naya [18.7K]3 years ago
5 0

Step-by-step explanation:

to know whether it is geometric progression or not, you need to find the common ratio. to find the ratio divide the (n+1)th term by n th term

so, 12/-4 = -3

also, -36/12 = -3

here u see the ratio is always same, i.e., common ratio.

thus u can say it is a geometric series with common ratio -3

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