Question

4$sqrt{3}$sin15cos$pi /12$

Answer 1

$4sqrt{3}sin15^o cos frac{pi}{12}=2sqrt{3}*2sin15^o cos15^o=\\2sqrt{3}*sin(2*15^o)=\\2sqrt{3}*sin 30^o=2sqrt{3}*frac{1}{2}=sqrt{3}$