Q59. If P, Q, and R are the angles of a triangle, what is the value of the following determinant?Δ = -1cos(R)cos(Q)cos(R)-1cos(P)cos(Q)cos(P)-1Mathematics — Matrices and Determinants — Question 59 of 98A. -1B. 0C. 1/2D. 1Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →