Question

Find the value of sin 5 pi/12 cos pi/12 + cos 5pi/12 sin pi/12

Answer 1

Sin(A+B) = SinA*CosB + CosA*SinB
Sin($\frac{5 \pi }{12}$ + $\frac{ \pi }{12}$) 
Sin($\frac{ \pi }{2}$) = 1