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20 August, 00:49

What is the sum of the first 10 terms in the geometric sequence - 3 6 - 12 24 - 48

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  1. 20 August, 03:27
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    Use the formula for the sum of a geometric sequence:

    Sum = (a (r^n - 1)) / (r - 1)

    where a is the first term, - 3

    r is the common ratio, - 2

    and n is the number of terms

    Thus,

    Sum = ((-3) ((-2) ^10 - 1)) / (-2-1) = 1023
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