Set, Relation and FunctionEasy

Question

The domain of the function f(x) = is

Options

A.[2, 3]
B.[2, 3)
C.[1, 2]
D.[1, 2)

Solution

9 - x2 > 0 and - 1 ≤ x - 3 ≤ 1 ⇒ x ∈ [2, 3)

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