Prove `(cos9^@-sin9^@)/(cos9^@+sin9^@)=tan36^@`

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

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

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

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

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

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

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

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

The value of ((cos9^@ + sin81^@) (sec9^@+ cosec81^@))/(sin56^@.sec34^@ + cos25^@ cosec65^@) is: ((cos9^@ + sin81^@) (sec9^@+ cosec81^@))/(sin56^@.sec34^@ + cos25^@ cosec65^@) का मान है:

value of (sin9^(@)cos9^(@))/(sin48^(@)sin12^(@)) is equal to :