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20 January, 01:53

If f (1) = 7 and f (n) = f (n - 1) - 4 then find the value of f (6).

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  1. 20 January, 02:56
    0
    - 13

    Step-by-step explanation:

    f (1) = 7

    f (n) = f (n - 1) - 4

    f (₂) = f (1) - 4 = 7 - 4 = 3

    f (₃) = f (₂) - 4 = 3 - 4 = - 1

    f (₄) = f (3) - 4 = (-1) - 4 = - 5

    f (₅) = f (₄) - 4 = ( - 5) - 4 = - 9

    f (₆) = f (₅) - 4 = ( - 9) - 4 = - 13
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