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14 April, 01:15

Given the following geometric sequence, find the common ratio: {225, 45, 9, ... }.

5

-5

1/5

-1/5

+2
Answers (1)
  1. 14 April, 01:26
    0
    In the sequence, a, b, c, d ... the common ratio is b/a or c/b or d/c etc

    so

    common ratio in 225 and 49 and 9 is

    49/225 or 9/45=1/5

    the common ratio is 1/5
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