Question

(Prove):-
cos a+b/2 = sin c/2

Answer 1

Answer:

In ∆ABC, Sum of angles of a triangle = 180° A + B + C = 180° ⇒ A + B = 180° - C = RHS Hence ProvedRead more on Sarthaks.com - https://www.sarthaks.com/929456/in-a-abc-prove-that-cos-a-b-2-sinc-2?show=929459#a929459