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20 September, 02:53

What is the explicit formula for this sequence?

2, 10, 50,250, 1250 ...

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  1. 20 September, 03:19
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    Explicit formula is 2 (5) ^ (n-1).

    Step-by-step explanation:

    This is a Geometric Sequence with common ratio 10/2 = 50/10 = 250/50 = 5.

    The nth term an = a1 r^ (n - 1)

    = 2 (5) ^ (n-1).
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