" 15."cot(xy)+xy=y

Find (dy)/(dx) , when: cot(xy)+xy=y

Find dy/dx when cot (y) + xy = y

Find the derivative of cot( x+ y ) = xy with respect to x .

If xy = tan^(-1) (xy) + cot^(-1) (xy), " then" (dy)/(dx) is equal to

If (x+y)=8 and xy=15 then the value of (x^3-y^3) is :

Find the real numbers (x,y) that satisfy the equation: xy^(2) = 15x^(2) +17xy + 15y^(2) x^(2)y = 20x^(2) + 3y^(2)

(sin x + sin y) / (sin x-sin y) = tan ((x + y) / (2)) * cot ((xy) / (2))

Prove that : tan^(-1) x+cot^(-1) y = tan^(-1) ((xy+1)/(y-x))