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Question
Find the domain of the following functions given by f(x) = `(x^3 - x + 3)/(x^2 - 1)`
Solution
For real value of x2 – 1 ≠ 0
⇒ (x – 1)(x + 1) ≠ 0
⇒ x – 1 ≠ 0 or x + 1 ≠ 0
⇒ x ≠ 1 or x ≠ –1
Therefore, the domain of f = R – {–1, 1}
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