Determine whether the sequence 6, 18, 54, 162... is geometric. If it is geometric, find the common ratio. Choose the answer from the following : 1234567891011121314151617181920.

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Presentation transcript:

Determine whether the sequence 6, 18, 54, is geometric. If it is geometric, find the common ratio. Choose the answer from the following : Geometric sequence, r=3 2.Geometric sequence, r=6 3.Not a geometric sequence

Find the sum ,384. Choose the answer from the following : , , ,381