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15 October, 21:56

The formula for the nth term b of a geometric series is b=ar^n-1. Find n when b=1,024, a=16 and r=2.

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  1. 15 October, 23:42
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    1024=16*2^n-1

    1024/16=2^n-1

    Log (1024/16) = (n-1) * log (2)

    n = (log (1,024:16) : log (2)) + 1

    n=7
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