Q39 Prep 3 Algebra Question Bank

a) If \( n(X) = \frac{X}{X^2 + 9} \), then the domain of \( n^{-1} \) is .........

(a) Ø

(b) \(\mathbb{R} - \{-3, 3\}\)

(c) \(\mathbb{R}\)

(d) \(\mathbb{R} - \{0\}\)

MR/Nasef.N

b) If \( n(X) = \frac{X - 2}{X^2 - X - 6} \), then the domain of \( n^{-1} \) is .........

(a) \(\mathbb{R} - \{2\}\)

(b) \(\mathbb{R} - \{-2, 3\}\)

(c) \(\mathbb{R} - \{-2, 2\}\)

(d) \(\mathbb{R} - \{-2, 2, 3\}\)

MR/Nasef.N

c) If \( n(X) = X^2 + 9 \), then the domain of \( n^{-1} \) is .........

(a) \(\mathbb{R}\)

(b) Ø

(c) \(\mathbb{R} - \{3, -3\}\)

(d) \(\mathbb{R} - \{9\}\)