Question

If
sin (A-B) = sin A. Cos B. - COSA SinB.
then
find
the

value
of sin 15​

Answer 1

sin(15)=sin(45-30)
= sin45.cos30 - cos45.sin30
= (0.707x0.866)-(0.707x0.5)
= 0.6122-0.3535
= 0.2587
Therefore, sin15= 0.2587 degrees