PLEASE HELP

0.1609876377

what is cos(15)divided by 6

$\large \frac{cos(15deg)}{6}=\frac{0.9659}{6}=0.16099$

$\large \frac{cos(15rad)}{6}=\frac{-0.7597}{6}=-0.12661$

  !

$\cos 15 \div 6\\ = \dfrac{\sqrt{2+\sqrt3}}{2}\times \dfrac{1}{6}\\ =\dfrac{\sqrt{2+\sqrt3}}{12}$