Q51. If P, Q, and R are the angles of a triangle, what is the value of the determinant of the matrix [[-1, cosR, cosQ], [cosR, -1, cosP], [cosQ, cosP, -1]]?Mathematics — NUST Mock By IBAGRADS 4 — Question 51 of 200A. -1B. 0C. 1/2D. 1Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →