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1 February, 09:21

768,384,192 what would the explicit formula be? a7=

7,11,15,19 what would be the explicit formula? a11=

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  1. 1 February, 10:58
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    a7 = 12, a11 = 47

    Step-by-step explanation:

    768, 384, 192, 96, 48, 24, 12

    a (n) = 768 / (2∧X - 1)

    a (7) = 768 / 2∧6 = 768 / 64 = 12

    7, 11, 15, 19 23, 17, 31, 35, 39, 43, 47

    a (n) = 7 + 4 * (X-1)

    a (11) = 7 + 4 * (11-1) = 7 + 40 = 47
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