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3 July, 21:43

Write an equation for the nth term in the geometric sequence. Then find an.

(19.) 0.2, 1.6, 12.8, 102.4, ...

(20.)

T

n

L

n

an

1

-1458

2

-162

3

-18

+5
Answers (1)
  1. 3 July, 21:59
    0
    Below.

    Step-by-step explanation:

    The common ratio = 1.6 / 0.2 = 8, 12.8 / 1.6 = 8.

    The nth term = an = 0.2 (8) ^ (n-1).
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