Question

If sin A =1/2 cos B =1/2 then A+B =​

Answer 1

sin(A + B) = sinAcosB+sinBcosA

sin(A+B) = 1/2*1/2 + 1/2*1/2

sin(A+B) = 1/4+1/4= 1/2

(A+B) = sin^-1 (1/2)

(A+B) = 30°