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20 December, 23:01

F (n+1) = f (n) - 2n if f (1) = 18 what is f (5)

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  1. 21 December, 02:12
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    F (2) = f (1+1) = f (1) - 2*1 = 16

    f (3) = f (2+1) = f (2) - 2*2 = 12

    and so on:

    f (4) = 6

    f (5) = - 2
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