If `x=secphi -tanphi and y="cosec" phi+cotphi`, then show that `xy+x-y+1=0.`

If x=secphi-tanphi and y=cosecphi+cotphi , then

If x=secphi-tanphiandy=cosecphi+cotphi , then show that xy+x-y+1=0 .

If x=secphi-tanphi&y=cosecphi+cotphi , then

If x=sectheta "and " y=cosec theta +cottheta , then prove that xy+1=y-x .

If x=sectheta "and " y=cosec theta +cottheta , then prove that xy+1=y-x .

If x=sectheta - tantheta and y = cosec theta+ cottheta , then prove that xy +1 = y - x.

If x=sectheta- tantheta"and " y=cosec theta +cottheta , then prove that xy+1=y-x .

If x=sec phi-tan phi and y=csc phi+cot phi then x=(y+1)/(y-1)( b) x=(y-1)/(y+1)y=(1+x)/(1-x)(d)xy+x-y+1=0

If x=sec theta-tan theta and y="cosec"theta+cot theta," then " y-x-xy=

If x=sec theta-tan theta and y="cosec"theta+cot theta," then " y-x-xy=