`sin(pi/7)sin((2pi)/7)sin((3pi)/7)`

2sin((pi)/8)sin((2pi)/8)sin((3pi)/8)sin((5pi)/8)sin((6pi)/8)sin((7pi)/8) = ?

The value of 2 sin (pi/8) sin((2pi)/8) sin((3pi)/8) sin ((5pi)/8) sin ((6pi)/8) sin((7pi)/8) is :

If A=sin((2pi)/7)+sin((4pi)/7)+sin((8pi)/7) and B=cos((2pi)/7)+cos((4pi)/7)+cos((8pi)/7) then sqrt(A^2+B^2) is equal to

Prove that: sinpi/7+sin(2pi)/(7) + sin(8pi)/7 + sin(9pi)/7=0

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

the value of sin((pi)/(7))+sin((2 pi)/(7))+sin((3 pi)/(7)) is

The value of sin (pi)/(7)+sin (2 pi)/(7)+sin (3 pi)/(7) is

Find the value of sin((pi)/(7))sin((2 pi)/(7))sin((4 pi)/(7))=

(sin((2 pi)/(7))+sin((4 pi)/(7)) -sin((6 pi)/(7)))/(sin((pi)/(7))sin((3 pi)/(7))sin((5 pi)/(7))) is equal to