Find the derivative of f(x)=x2−1f(x) = \sqrt{x^2-1}f(x)=x2−1.
x/x2−1x / \sqrt{x^2-1}x/x2−1
1/(2x2−1)1 / (2\sqrt{x^2-1})1/(2x2−1)
x/(x2−1)x / (x^2-1)x/(x2−1)
None