Question

sin 5п/12 * Cos 5п/12

Answer 1

$sin(frac{5pi}{12})*cos(frac{5pi}{12})=frac{2sin(frac{5pi}{12})*cos(frac{5pi}{12})}{2}=frac{sin(frac{5pi}{6})}{2}=frac{frac{1}{2}}{2}=frac{1}{4}$