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(sin36^(@)+cos36^(@))/(cos54^(@)+sin54^(...

(sin36^(@)+cos36^(@))/(cos54^(@)+sin54^(@))=1

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Prove that (sin36^(@))/(cos54^(@))+(cos36^(@))/(sin54^(@))=2

sin36^(@)+cos36^(@)=sqrt(2)cos9^(@)

cos54^(@)cos36^(@)-sin54^(@)sin36^(@)=0

Evalute (f) (sin36^(@))/(cos54^(@))-(sin54^(@))/(cos36^(@))

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)

Prove : (cos 9^(@) +sin9^(@))/(cos9^(@) - sin9^(@)) = tan54^(@)

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

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

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