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

Prove that :cos9^(0)+sin9^(0)=sqrt(2)sin54^(@)

If the value of cos9^(@)-sin9^(@)=sqrt(2)sin alpha where a in[0,3 pi], then the value of 'alpha' can be -

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

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

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^(@)

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

Prove that : cos 9^0 + sin 9^0 = sqrt(2) sin 54^0

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