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" सिब्ध कीजिए : "(sin36^(@))/(cos54^(@))...

" सिब्ध कीजिए : "(sin36^(@))/(cos54^(@))+(cos36^(@))/(sin54^(@))=2

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

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

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

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

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

sin9^(@)+cos9^(@)=sqrt(2)sin54^(@)

cos(36^(@)-A)cos(36^(@)+A)+cos(54^(@)+A)cos(54^(@)-A)=

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