`sqrtx + y = 9 and sqrty +x = 27`

sqrt x + y = 7 x+ sqrty = 11

Prove that tan^-1((sqrtx + sqrty)/(1 - (sqrtxy)) = tan^-1 sqrt x + tan^-1 sqrty , x > 0, y > 0, x y < 1

Solve for x and y : ( 2)/(sqrt x ) + (3)/(sqrty ) = 2, ( 4)/(sqrtx ) - ( 9)/(sqrty) = - 1 ( x ne 1, y ne 0 )

If sqrtx + sqrty = sqrtx , find (d^2y)/(dx^2) at x = a

If sqrtx + sqrty = sqrta " then " (dy)/(dx) = ?

sqrtx + sqrty = sqrta " then " (dy)/(dx) = ……..

The common area of the curves y = sqrtx and x = sqrty is equal to