`(cos9^(@)+sin9^(@))/(cos9^(@)-sin9^(@))=tan5 4^(@)`

(cos9^(@)+sin9^(@))/(cos9^(@)-sin9^(@))=tan54^(@)

(cos9^(@)+sin9^(@))/(cos9^(@)-sin9^(@))=(a)tan54^(@)(b)tan36^(@)(d) None of these (c)tan18^(@)

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

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

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

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

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

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

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