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How do I find the first four terms of this geometric sequence a1=3 and r=-3

How do I find the first four terms of this geometric sequence a1=3 and r=-3
asked 163k views
1 vote
How do I find the first four terms of this geometric sequence

a1=3 and r=-3

asked
User Theta
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8.4k points

1 Answer

3 votes
a(n)= -1(-3^n)


3 , -9 , 27 , -81
answered
User Jim Smith
by
8.0k points
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