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20 March, 21:46

Write the equation that modeled the sequence 63,-21,7,-7/3,7/9

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  1. 20 March, 23:34
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    an = 63 (-1/3) ^ (n-1)

    Step-by-step explanation:

    This is a geometric sequence with first term 63 and common ratio - 1/3.

    The equation for the nth term is

    an = 63 (-1/3) ^ (n-1).
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