Q3. In a triangle with sides a, b, and c opposite to angles A, B, and C respectively, and with semi-perimeter s, which of the following is the correct formula for cos(A/2)?Mathematics — Nust Mock By Dogers 1 — Question 3 of 200A. √((s-b)(s-c) / bc)B. √(s(s-a) / bc)C. √(s(s-b) / ac)D. √(s(s-a) / abc)Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →