Home
Class 11
MATHS
Show that cos36^(@) cos72^(@) cos108^(@)...

Show that `cos36^(@) cos72^(@) cos108^(@) cos144^(@)=(1)/(16)`

Promotional Banner

Similar Questions

Explore conceptually related problems

Prove that cos 36^(@) cos 72^(@) cos 108^(@) cos 144^(@)=1//16 .

Show that cos 36^(@) cos 54 ^(@) -sin 36^(@) sin 54^(@) =0

Prove that cos 2 0^(@)cos4 0^(@)cos6 0^(@)cos8 0^(@)=1/16

Prove that cos 20^(@) cos 40^(@) cos 80^(@)=1/8

Prove that cos 20^(@) cos 40^(@) cos 80^(@)=1/8

cos1^(@)+cos2^(@)cos3^(@)...+cos179^(@)" is "

cos 1^(@) + cos 2^(@) + cos 3^(@) + ….+ cos 179^(@) =