Question

it is right to say that Sin (A + B) =Sin A + sin B ? justify​

Answer 1

Let A = 60 , B = 30

LHS = sin (A+B) = sin(60+30) = sin90 = 1

RHS = sinA + sinB = sin60 + sin30 = root3/2 + 1/2

LHS is not equal to RHS