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Komok [63]
3 years ago
7

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

Mathematics
1 answer:
Kruka [31]3 years ago
7 0

Answer:

a₈ = \frac{1}{78125}

Step-by-step explanation:

The nth term of a geometric sequence is

a_{n} = a₁(r)^{n-1}

Here a₁ = 1 and r = \frac{1}{5} , then

a₈ = 1 × (\frac{1}{5}) ^{7} = 1 × \frac{1}{78125} = \frac{1}{78125}

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