Home
Class 10
MATHS
Show that : cos 36^(@) cos 54^(@) - si...

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

Promotional Banner

Similar Questions

Explore conceptually related problems

2 cos 54^(@) * sin 66^(@) =

cos 36^(@) - cos 72^(@) =

Show that cos 340^(@) cos 40^(@)+sin 200^(@) sin 140^(@) = 1/2 .

sin 12^(@)sin 48^(@)sin 54^(@)=

cos 36^@ - cos72^@ =

Show that sin 1140^(@) cos 390^(@)-cos 780^(@) sin 750^(@) = 1//2 .

cos^(2) 36^(@) + cos^(2) 72^(@)=

Prove that 4cos12^(@)cos48^(@)cos72^(@)=cos36^(@) .