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15 November, 14:30

Given f (x) = x^3 and g (x) = 1-5x^2, find (fog) (x) and its domain

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  1. 15 November, 16:53
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    (fog) (x) = f (g (x))

    Given f (x) = x³ and g (x) = 1-5x²

    Then

    f (g (x)) = f (1 - 5x²) = (1 - 5x²) ³

    The domain of f (g (x)) is any real numbers; x ∈ R
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