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Find the common ratio of the geometric sequence 2,-6,18,...

Find the common ratio of the geometric sequence 2,-6,18,...
asked 19.9k views
4 votes
Find the common ratio of the geometric sequence 2,-6,18,...

asked
User Bigredbob
by
8.1k points

1 Answer

4 votes

Answer: -3

Explanation:

Use the ratio r= a2/a1

So -6/2= -3

2*-3=-6

-6*-3= 18

18*-3= -54

answered
User Ranindu
by
8.8k points
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