tan y=(2t)/(1-t^(2)),sin x=(2t)/(1+t^(2))," then "(dy)/(dx)=

If tany = (2t)/(1-t^2) and sin x = (2t)/(1+t^2) then (dy)/(dx) =_____

If sin x = (2t)/(1+t^(2)), tan y = (2t)/(1-t^(2)) , then (dy)/(dx) is equal to

If x=(2t)/(1+t^(2)),y=(1-t^(2))/(1+t^(2))," then "(dy)/(dx)=

If sin x=(2t)/(1+t^(2)),tan y=(2t)/(1-t^(2)), find (dy)/(dx)

If x=(1-t^(2))/(1+t^(2))" and "y=(2t)/(1+t^(2))," then: "(dy)/(dx)|_(t=1) is

If sin x=(2t)/(1+t^(2)),tan y=(2t)/(1-t^(2)),quad find (dy)/(dx)

x=(1-t^(2))/(1+t^(2)), y=(2t)/(1+t^(2)) " then " (dy)/(dx) is

If x=tan ((1)/(2) sin ^(-1)((2t)/( 1+t^(2))) +(1)/(2)cos ^(-1) ((1-t^(2))/( 1+t^(2)))), then y= (2t)/( 1-t^(2)), then (dy)/(dx)=

If x =a ((1-t^(2))/( 1+ t^(2))),y =(2bt )/(1+t^(2) ),then (dy)/(dx) =