The value of `sin""(pi)/(10)sin""(13pi)/(10)` is

The value of sin((pi)/(10))sin((13 pi)/(10)) is

The value of sin (pi)/(10) sin (13 pi)/(10) is

The value of sin ""(pi)/(16) sin ""(3pi)/(16) sin ""(5pi)/(16) sin ""(7pi)/(16) is

The value of sin ""(pi)/(16) sin ""(3pi)/(16) sin ""(5pi)/(16) sin ""(7pi)/(16) is

The value of sin""(pi)/(14).sin""(3pi)/(14).sin""(5pi)/(14).sin""(7pi)/(14).sin""(9pi)/(14).sin""(11pi)/(14).sin""(13pi)/(14) is

Find the value of (a) sin(pi)/(10)+sin(13pi)/(10) (b) cos^(2)48^(@)=sin^(2) 12^(@)

Find the value of (a) sin(pi)/(10).sin(13pi)/(10) (b) cos^(2)48^(@)-sin^(2) 12^(@)

sin((pi)/(10))sin((3pi)/(10))=?

Find the value of sin^(2)""(pi)/(10)+sin^(2)""(4pi)/(10)+sin^(2)""(6pi)/10+sin^(2)""(9pi)/10 .