Home
Class 12
MATHS
cos 20^(@)* cos 40^(@) * cos 60^(@) * co...

`cos 20^(@)* cos 40^(@) * cos 60^(@) * cos 80^(@) = `

Promotional Banner

Similar Questions

Explore conceptually related problems

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

cos 40^(@) + cos 80^(@) + cos 160^(@) =

cos20 ^ (@). cos40 ^ (@). cos60 ^ (@) cos80 ^ (@) =

A=cos 20^(@)cos 40^(@) cos60^(@)cos 80^(@) , B=cos6^(@)cos42^(@)cos66^(@)cos78^(@) and C=cos 36^(@)cos72^(@)cos 108^(@)cos 144^(@) then

cos 20^(@) + cos 40^(@) + cos 60^(@) +...+cos160^(@)+cos 180^(@)=

cos20 ^ (@) cos40 ^ (@) cos80 ^ (@) =

cos20 ^ (@) cos40 ^ (@) cos60 ^ (@) cos80 ^ (@) - (1) / (16) =

Prove that cos 20^(@)cos40^(@)cos60^(@)cos80^(@)=(1)/(16)

cos20^(@).cos40^(@).cos60^(@).cos80^(@) is :