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14 February, 19:10

F (n) = - |2n|-2; find f (9)

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  1. 14 February, 20:15
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    -|2n|-2=9

    -|2n|=11

    If 2n is "-", 2n=11

    n=11/2

    If 2n is "+", - 2n=11

    n = - 11/2
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