Q67. If e and e' are the eccentricities of a hyperbola and its conjugate, respectively, then which of the following relations is correct?Mathematics — NUST Mock 1 — Question 67 of 200A. e2 − e′2 = 1B. 1/e2 − 1/e′2 = 1C. e2 + e′2 = 1D. 1/e2 + 1/e′2 = 1Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →