H5ar9renycaiushikada H5ar9renycaiushikada

24-10-2016
Mathematics

contestada

what is the 15th term of the sequence an = -2n(n 3)?

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nobillionaireNobley nobillionaireNobley

26-10-2016

an = -2n(n + 3)
a(15) = -2(15)(15 + 3) = -30(18) = -540

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