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9 November, 21:25

If a (x) = 3x + 1 and b (x) square root of x - 4, what is the domain of (bºa) (x) ?

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  1. 9 November, 21:28
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    Domain = [1,+∞[

    Step-by-step explanation:

    We must have 3x + 1 ≥ 4 ⇔ 3x ≥ 3 ⇔ x ≥ 1
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