(cos9^(@)+sin9^(@))/(cos9^(@)-sin9^(@))=

A=(cos9^(@)-sin9^(@))/(cos9^(@)+sin 9^(@)), B=(cos21^(@)+sin21^(@))/(cos21^(@)-sin21^(@)) and C=tan 20^(@)+tan 40^(@)+sqrt(3)tan20^(@)tan40^(@) then descending order is

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

(cos9^(@) + sin 9^(@))/(cos9^(@) - sin9^(@))=

The value of (cos 9^(@) +sin 9^(@))/(cos 9^(@) -sin 9^(@)) is equal to-

(cos 9^(@) +sin 9^(@))/(cos 9^(@) -sin 9^(@)) is equal to :

Prove that (cos 9^(@)+ sin 9^(@))/(cos 9^(@) -sin 9^(@)) = tan 54^(@)

Prove that (cos 9^(@)+ sin 9^(@))/(cos 9^(@) -sin 9^(@)) = tan 54^(@)

" Prove that "(cos9^(0)+sin9^(0))/(cos9^(0)-sin9^(0))=cot36^(@)

(cos 9^(@) + sin 9^(@))/(cos 9^(@) - sin 9^(@)) equals

cos 9^(@) - sin 9^(@)=