If `x=a cos q,y=b sin q,` then `dy/dx=`

If y+cos y=sin x then find (dy)/(dx)

If y=cos (sin x ),then (dy)/(dx) =

If cos (x+y)=y sin x then find dx/dy

If cos (xy) =sin (x+y) ,then (dy)/(dx)

x=a cos theta,y=b sin theta then find dy/dx

If y=sin x+cos x then (dy)/(dx) =

If x cos y=sin(x+y), find (dy)/(dx)

If (cos x)^(y)=(sin y)^(x), then (dy)/(dx) equals-

If x=a cos theta+b sin theta and y=a sin theta-b cos theta, then prove that y^(2)(d^(2)y)/(dx^(2))-x(dy)/(dx)+y=0

If (cos)^(y)=(sin y)^(x), then (dy)/(dx) equals