((cos ec^(2)(pi)/(7)+cosec^(2)(2 pi)/(7)+cosec^(2)(3 pi)/(7))/(2))" is equals to "

2sin^(2)""(pi)/(6)+cosec^(2)""(7pi)/(6) cos^(2)""(pi)/(3)=(3)/(2)

2sin^(2)((pi)/(6))+cos ec^(2)(7(pi)/(6))(cos^(2)pi)/(3)=(3)/(2)

cos ((pi) / (7)) * cos ((2 pi) / (7)) * cos ((3 pi) / (7)) =

The vlaue of cosec^(2)""(pi)/(7)+cosec^(2)""(2pi)/(7)+cosec^(2)""(3pi)/(7), is

The value of 2"sin"^(2)(pi)/(6)+"cosec"^(2)(7pi)/(6)."cos"^(2)(pi)/(3) is equal to

(cot^(2)(pi)/(6)+csc(5 pi)/(6)+3tan^(2)(7 pi)/(6))/(2cos^(2)(pi)/(3)+csc^(2)(7 pi)/(6)*cot^(2)(pi)/(3)) is equal to

ubrace (cos ec ^ (2) ((pi) / (7)) + cos ec ^ (2) ((2 pi) / (7)) + cos ec ^ (2) ((3 pi) / (7) ))2

2sin((2 pi)/(6))+cosec^(2)((pi)/(6))*cos^(2)((pi)/(3))=?