Question

sin A + sin B + sin(A + B)÷
sin A + sin B - sin(A + B)

ello...​

Answer 1

Answer:

Sin(A+B)=sinA.cosB+cosA.sinB

So , according to above equation

sin(A+B)=sinA+sinB is false.

Justification:

Let A=60

∘

B=30

∘

LHS=sin(A+B)=sin(60

∘

+30

∘

)=sin90

∘

=1

RHS=sinA+sinB=sin60

∘

+sin30

∘

=

2

3

+

2

1

Hence, LHS



=RHS.