Q85. Simplify the following trigonometric expression: (sin2x + cos2x)(sin2x - cos2x)Mathematics — NUST Mock 6 — Question 85 of 200A. cot(2x)B. sin(2x)C. -cos(2x)D. -tan(2x)Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →