Q42. Which of the following statements about inverse trigonometric functions is incorrect?Mathematics — NUST Mock By Dogers 5 — Question 42 of 200A. cot-1(1/x) = tan-1(x)B. cos-1(1/x) = sec-1(x)C. cos-1(-x) = cos-1(x)D. tan-1(x) = -tan-1(-x)Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →