`tan54^(@)` can be expressed as

The value of (tan^(2)18^(@))(tan^(2)54^(@)) can be expressed as a rational number (p)/(q) in lowest form where p,q in N. Find the value of (p+q).

The expression (tan A)/(1- cot A) + ( cot A )/( 1- tan A) can be written as

Give an expression for tan(x+y)

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

(cos 17^(@) + sin 17^(@))/(cos 17^(@) - sin 17^(@))= ................ A) tan 62^(@) B) tan 56^(@) C) tan 54^(@) D) tan73^(@)