" 7."cos6^(@)*sin24^(@)*cos72^(@)=

cos 6^(@) sin 24^(@) cos 72^(@) =

cos 12 ^(@) cos 24 ^(@) cos 36 ^(@) cos 48^(@) cos 72^(@) cos 84^(@) = (1)/(2 ^(6))

The value of cos12^(@)cos24^(@)cos36^(@)cos48^(@)cos72^(@)cos84^(@), is

The value of cos12^(@)cos24^(@)cos36^(@)cos48^(@)cos72^(@)cos84^(@), is

Evaluate : ((cos65^(@)sin18^(@)cos58^(@)))/((cos72^(@)sin25^(@)sin32^(@)))

Statement-1: (cos36^(@)-cos72^(@))/(cos36^(@)cos72^(@))=2 Statement-2: sin15^(@)=(sqrt6-sqrt7)/(4)

Statement-1: (cos36^(@)-cos752^(@))/(cos36^(@)cos72^(@))=2 Statement-2: sin15^(@)=(sqrt6-sqrt7)/(4)

Evaluate the following : (sin72^(@)+cos18^(@))(sin72^(@)-cos18^(@))

Evaluate: i) sin48^(@)cos42^(@)+cos48^(@)sin42^(@) ii) cos72^(@)cos12^(@)+sin72^(@)sin12^(@) ii) cos72^(@)cos12^(@)+sin72^(@)sin12^(@) iii) (tan100^(@)+tan35^(@))/(1-tan100^(@)tan35^(@)) iv) sinAcos(A-B)-cosAsin(A-B)

Evaluate: i) sin48^(@)cos42^(@)+cos48^(@)sin42^(@) ii) cos72^(@)cos12^(@)+sin72^(@)sin12^(@) ii) cos72^(@)cos12^(@)+sin72^(@)sin12^(@) iii) (tan100^(@)+tan35^(@))/(1-tan100^(@)tan35^(@)) iv) sinAcos(A-B)-cosAsin(A-B)