Home
Class 11
MATHS
" (v) "cos20^(@)cos100^(@)+cos100^(@)cos...

" (v) "cos20^(@)cos100^(@)+cos100^(@)cos140^(@)-cos140^(@)cos200^(@)=-(3)/(4)

Promotional Banner

Similar Questions

Explore conceptually related problems

cos20^(@)+cos100^(@)+cos140^(@)=

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

The value of cos20^(@)cos100^(@)+cos100^(@)cos140^(@)-cos140^(@)cos200^(@) is equal to

Prove that: cos20^(0)cos100^(@)+cos100^(@)cos140^(@)-cos140^(@)-cos140^(@)cos200^(@)=

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

cos 20^(@) + cos 100^(@) + cos 140^(@) =

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

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

Prove that cos 80^(@) cos40^(@)+cos40^(@) cos200^(@) +cos200^(@) cos 80^(@) = -3/4

cos 20^(@) + cos 100^(@) + cos 140^(@) = 0