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8 February, 05:17

Explicit formula for the sequence 7,2,-3,-8

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  1. 8 February, 05:34
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    Step-by-step explanation:

    The common difference of the sequence is - 5

    Since the difference is - 5

    a_n = 7 + (n-1) (-5)

    a_n = 7-5n+5

    a_n = 12-5n
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