" The value of "cos20^(@)cos40^(@)cos80^(@)

cos 20^(@) cos 40^(@) cos 80^(@)=

The value of cos 20^(@) cos 40^(@)cos 60^(@) cos 80^(@) is equal to

The value of cos 20^(@) cos 40^(@)cos 60^(@) cos 80^(@) is equal to .............. A) 1/16 B) 3/16 C) (sqrt3)/(16) D) (sqrt3)/(32)

If sin2A=2sinA cosAand sin20^(@)=K, " then the value of " cos20^(@)cos80^(@)cos160^(@) =__________.

The value of cos40^(@)+cos80^(@)+cos160^(@) is

Find the value of 8 cos10^(@)cos20^(@)cos40^(@) .

Find the value of cos 20^@ cos 40^@ cos 80^@

The value of cos20^@cos40^@cos60^@cos80^@ is equal to

Find the value of cos20^@. cos40^@. Cos60^@. Cos80^@