Q19. Find the derivative of tan-1(x).Mathematics — Differentiation — Question 19 of 26A. 1 / (2√tan-1(x))B. 1 / (2(1 + x2)√tan-1(x))C. 1 / (1 + x2)D. (1 + x2) / (2√tan-1(x))Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →