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13 April, 05:08

Find the common ratio for the following sequence.

1/2, - 1/4, 1/8, - 1/16, ...

A. - 2

B. - 1/2

C. 1/2

D. 2

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  1. 13 April, 06:19
    0
    Common ratio = an-a (n-1) = a₂-a₁

    dа ta:

    a₁=1/2

    a₂=-1/4

    commo ratio = (-1/4) / (1/2) = - 2/4=-1/2

    Answer: B. - 1/2
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