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26 December, 22:55

What is the seventh term of a sequence whose first term is 1 and whose common ratio is 3? a. 243 b. 729 c. 2,187

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  1. 26 December, 23:45
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    This is a geometric sequence.

    a 1 = 1, r = 3

    T n = a 1 * r ^ (n - 1)

    T 7 = 1 * 3^6

    T 7 = 729

    Answer: B) 729
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