Question

Find the domain of
(i) f(x) =x^3-x+3/x^2-1
(ii) f(x) =x.|x|​

Answer 1

Answer:

Given that f(x) = (x3 - x + 3)/(x2 - 1) Here, f(x) is not defined if x2 – 1 ≠ 0 (x – 1) (x + 1) ≠ 0 x ≠ 1, x ≠ -1 Hence, the domain of f = R – {-1, 1}Read more on Sarthaks.com - https://www.sarthaks.com/901210/find-the-domain-of-each-of-the-following-functions-given-by-f-x-x-3-x-3-x-2-1