Sin(a+b)=
SinACosB+CosASinB
SinA.CosB+CosA.SinB
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SinACosB+CosASinB
SinA.CosB+CosA.SinB
Sin(A+B) =SinA.CosB + CosA.SinB
Cos{90-(A+B)}
sinA×cosB+cosA×sinB
Let A =B=30 Sin(A+B) =sin(30 +30)=sin60=√3/2
sinacosb+cosasinb
sinacosb+cosasinb
That\’s incomplete Q, (i think so… )
Sin a cos b cos a sin b
SinA CosB + CosA SinB