Home
Class 12
MATHS
cos6^(@)cos42^(@)cos66^(@)cos78^(@)...

cos6^(@)cos42^(@)cos66^(@)cos78^(@)

Promotional Banner

Similar Questions

Explore conceptually related problems

4cos6^(@)cos42^(@)cos60^(@)cos78^(@)=

A=cos20^(@)cos40^(@)cos60^(@)cos80^(@),B=cos60cos42^(@)cos66^(@)cos78^(@) and C=cos36^(@)cos72^(@)cos108^(@)cos144^(@) then

Prove that cos 6^(@) cos 42^(@) cos 66^(@) cos 78^(@) =(1)/(16)

Prove that 4 cos 6^(@) cos 42 ^(@) cos 66^(@) cos 78^(@) = (1)/(4).

Prove that 4 cos 6^(@) cos 42 ^(@) cos 66^(@) cos 78^(@) = (1)/(4).

cos56^(@)+cos58^(@)-cos66^(@)-4cos28^(@)cos29^(@)sin33^(@)=