1.The derivative of tan⁻¹( (√(1+x²−1)/x) ) with respect to tan⁻¹( (2x√(1−x²)/(1−2x²) ) ) at x = 1/2 is :a.2√3/5b.√3/12c.2√3/3Login to continueOnly logged in users canattempt or see the solution.