Find the value of `cos((2pi)/7)*cos((4pi)/7)*cos((6pi)/7)`

The value of cos((2pi)/7)cos((4pi)/7)cos((6pi)/7) is

Find the value of cos(2 pi)/(7)+cos(4 pi)/(7)+cos(6 pi)/(7)

If the value of cos((2pi)/7) + cos((4pi)/7)+cos((6pi)/7)+cos((7pi)/7)=-l/2 Find the value of l

If the value of cos((2pi)/7) + cos((4pi)/7)+cos((6pi)/7)+cos((7pi)/7)=-l/2 Find the value of l

The value of cos((2pi)/7)+cos((4pi)/7)+cos((6pi)/7)+cos((7pi)/7)=

If the value of cos((2 pi)/(7))+cos((4 pi)/(7))+cos((6 pi)/(7))+cos((7(pi)/(7)))=-(l)/(2) Find the value of l

The value of cos((2pi)/7)cos((4pi)/7)cos((6pi)/7) is a. -1//2 b. \ 1//2 c. \ 1//4 d. 1//8

cos(pi/7)cos((2pi)/7)cos((4pi)/7)=

the value of (cos pi)/(7)cos(2(pi)/(7))cos(3(pi)/(7)) is

Find the value of cospi/7+cos(2pi)/7+cos(3pi)/7+cos(4pi)/7+cos(5pi)/7+cos(6pi)/+cos(7pi)/7