Question

Use the product-to-sum formula to write the given product as a sum or difference

12sin(pi/6)sin(pi/6)

Answer 1

use the identity
\[\sin 2 x=2\sin x \cos x\]

Answer 2

where \[x=\pi/6\]

Answer 3

2 sin A sin B=cos(A-B)-cos(A+B)