Function domain with root and fraction | Mathematics ESA 2025 | Question 1
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6Select the alternative that explains the domain D of the function f: ℝ → ℝ, defined by:
f(x) = √[(x + 1)/(x² − 16)]
A) D = {x ∈ ℝ | x ≥ 1 and x ≠ 4}
B) D = {x ∈ ℝ | −1 ≤ x ≤ 4}
C) D = {x ∈ ℝ | −4 less than x ≤ 4}
D) D = {x ∈ ℝ | x less than 1 and x ≠ −4}
E) D = {x ∈ ℝ | −4 less than x ≤ −1 and x greater than 4}
= = ...