" (iv) "(cos15^(@)-cos75^(@))/(sin75^(@)-sin15^(@))

Prove that : (i) "sin"105^(@)+cos105^(@)=(1)/(sqrt(2)) (ii) cos105^(@)+cos15^(@)="sin"75^(@)-"sin"15^(@)

Prove that (cos45^(@)-cos75^(@))/(sin45^(@)+sin75^(@))=2-sqrt3

(cos 75^(@)+cos15^(@))/(sin75^(@)-sin 15^(@))=sqrt(3)

(cos 75^(@)+cos15^(@))/(sin75^(@)-sin 15^(@))=sqrt(3)

Prove that, cos105^(@)+cos15^(@)=sin75^(@)-sin15^(@)

cos 15^(@) - cos 75^(@) =

Solve that : (sin75^(@)+sin15^(@))/(sin75^(@)-sin15^(@))=sqrt(3)

Prove that (sin75^(@)+sin15^(@))/(sin75^(@)-sin15^(@))=sqrt3

A.78^(@)-sin18^(@)+cos132^(@),B=cos12^(@)+cos84^(@)+cos132^(@)+cos156^(@) and C=(sin75^(@)+sin15^(@))/(cos75^(@)+cos15^(@)) then arrang in the ascending order