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25 September, 08:47

If f (x) = 3 over x+2 - square root x-3 f (19) =

+3
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  1. 25 September, 12:21
    0
    F (19) = (3 / (19+2)) - sqrt (19-3)

    = (3/21) - sqrt (16)

    = (1/7) - 4

    = (1/7) - (28/7)

    = - 27/7

    = - 3 6/7
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