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What is the 7th term of the geometric sequence where a1 = -4,096 and a4 = 64?

What is the 7th term of the geometric sequence where a1 = -4,096 and a4 = 64?
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1 vote
What is the 7th term of the geometric sequence where a1 = -4,096 and a4 = 64?

User Andrey Hartung
by
7.8k points

2 Answers

6 votes

Answer:

A. -1

Explanation:

User John Fonseka
by
8.2k points
1 vote
First, we calculate the common ratio.
an = arⁿ⁻¹
64 = -4096r³
r = -1/4
a(7) = -4096r⁷⁻¹
a(7) = -1
User Axil
by
7.6k points
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