Determine if the sequence is geometric. If it is, find the common ratio, the 8th term, and the explicit formula. 1) -1, -3, -9, -27, ... 1 2) 2, 2' 8' 32 1 ...

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Chapter13: Sequences And Series
Section13.CT: Chapter Test
Problem 7CT
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Determine if the sequence is geometric. If it is, find the common ratio, the 8th term, and the
explicit formula.
1 1
2) 2,
2' 8' 32'
1) -1, -3, -9, -27, ...
1
Given the explicit formula for a geometric sequence find the common ratio, the term named in
the problem, and the recursive formula.
n-1
6) a =-1.5 (-2)"-1
5) а,
=-3 .
Find a
1,
Find a,,
Transcribed Image Text:Determine if the sequence is geometric. If it is, find the common ratio, the 8th term, and the explicit formula. 1 1 2) 2, 2' 8' 32' 1) -1, -3, -9, -27, ... 1 Given the explicit formula for a geometric sequence find the common ratio, the term named in the problem, and the recursive formula. n-1 6) a =-1.5 (-2)"-1 5) а, =-3 . Find a 1, Find a,,
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