Question

Given A = 60° and B = 30°, prove that :
() sin (A + B) = sin A cos B + cos A sin B​

Answer 1

Answer:

A=60∘ and B=30∘⇒A-B=(60∘-30∘)=30∘. ∴sin(A-B)=sin30∘=12.12-Nov-2020