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Determine if the sequence is geometric. If it is find the common ratio. -1,6,-36,216,…

User Mafu
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1 Answer

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The series is given -1,6,-36,216......

For geometric sequences, the ratios between two adjacent terms have to be the same


(6)/(-1)=-(36)/(6)=(216)/(-36)=-6

Thus ratios are all the same, then it is a geometric sequence .

And the common ratio is -6.

User Tom Kerkhove
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