Question

co + y sin 0 = a, x sin 8 – y cose = b​

Answer 1

Answer:

sin ( A -B) =1/2 sin (A-B)=30°[• sin 30°=1/2] on equating both sides A-B =30°....(1) cos (A-B)=1/2 cos (A-B)= cos (60°)=1/2]