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If a1=1. And r=1/5 find a8
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2 votes
If a1=1. And r=1/5 find a8

User Benwixen
by
4.3k points

1 Answer

2 votes

Answer:

a₈ =
(1)/(78125)

Explanation:

The nth term of a geometric sequence is


a_(n) = a₁
(r)^(n-1)

Here a₁ = 1 and r =
(1)/(5) , then

a₈ = 1 ×
((1)/(5)) ^(7) = 1 ×
(1)/(78125) =
(1)/(78125)

User Lynnie
by
4.1k points
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