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" 37.The value of "cos(2 pi)/(7)*cos(4 p...

" 37.The value of "cos(2 pi)/(7)*cos(4 pi)/(7)*cos(6 pi)/(7)" is "

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

cos.(2pi)/(7)+cos.(4pi)/(7)+cos.(6pi)/(7)

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)

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

"cos"(2pi)/(7) +"cos"(4pi)/(7)+"cos"(6pi)/(7)

cos((2pi)/7)+cos((4pi)/7)+cos((6pi)/7)

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

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