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12 December, 10:06

Which formula can be used to find the nth term in a geometric sequence where

and

A.

B.

C.

D.

+1
Answers (1)
  1. 12 December, 10:23
    0
    Hello:

    the nth term in a geometric sequence where is;

    an = a1 * qn ... q : common ratio a1 the first term

    exempl:

    C) an = 2*3^n-1

    an = 2*3^n * 3^-1

    an = (2/3) * 3^n

    a1 = 2/3 and q = 3

    same method for : D
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