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23 May, 13:14

If f (x) = √x + 12 and g (x) = 2√x what is the value of (f-g) (144) ?

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Answers (2)
  1. 23 May, 15:14
    0
    F (144) = sqrt (144) + 12 g (144) = 2 (sqrt (144))

    f (144) = 12+12 g (144) = 2 (12)

    f (144) = 24 g (144) = 24

    (24) - (24) = 0
  2. 23 May, 16:19
    0
    F (x) = / sqrt (x)

    g (x) = 2/sqrt (x)

    (f-g) (x) = / sqrt (x) - 2/sqrt (x)

    (f-g) (144) = / sqrt (144) - 2/sqrt (144)

    (f-g) (144) = 12 - 24

    (f-g) (144) = - 12
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