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16 March, 18:28

The geometric sequence bn is defined below. Find b3.

B1 = 54

R = - 1/3

+3
Answers (1)
  1. 16 March, 21:02
    0
    6

    Step-by-step explanation:

    hello:

    the nth term is : Bn = B1*R^n-1

    calculate B3 (when n=3) R = - 1/3 B1 = 54

    B3 = 54 * (-1/3) ^ (3-1)

    B3 = 54 * (1/9) = 6
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