sin6^(@)sin42^(@)sin6^(@)sin78^(@)

sin6^(@)sin42^(@)sin66^(@)sin78^(@)=

Find sin6^(@)sin42^(@)sin66^(@)sin78^(@) .

Prove that sin6^(@)sin42^(@)sin66^(@)sin78^(@)=1//16 .

Prove that: sin6^(@)sin42^(@)sin66^(@)sin78^(@)=1/16

Prove that: sin6^(@)sin42^(@)sin66^(@)sin78^(@)=1/16

If sin6^(@)sin42^(@)sin54^(@)sin66^(@)sin78^(@)=(sqrt(a)+b)/(c),a,b,c in N where b&c are relatively prime,then value of (a+b+c) is

(sin2^(@)+sin4^(@)+sin6^(@)+sin8^(@))/(cos1^(@)*cos2^(@)*cos5^(@))=

Prove, sin6^(@).sin(42^(@)).sin(66^(@)).sin(78^(@))=(1)/(16) .