if `x=sintheta+thetacostheta , y=costheta-thetasintheta` then `((dy)/(dx))_(theta=pi/2)=`

If x=sintheta+thetacostheta,y=costheta-thetasintheta," then "((dy)/(dx))" at "theta=(pi)/(2) is

If x=a(costheta+thetasintheta),y=a(sintheta-thetacostheta)," then "(dy)/(dx)=

If y=1-costheta,x=1-sintheta,then (dy)/(dx) at theta=(pi)/(4) is

If x=ae^(theta)(sintheta-costheta),y=ae^(theta)(sintheta+costheta)," then "((dy)/(dx))" at "theta=(pi)/(2) is

If x=costheta(1+costheta),y=sintheta(1+costheta)," then "((dy)/(dx))" at "theta=(pi)/(2) is

If x=3costheta-cos^3theta y=3sintheta-sin^3theta find dy/dx

If x=a(costheta+thetasintheta) , y=a(sintheta-thetacostheta) , prove that (d^2x)/(d theta^2)=a(costheta-thetasintheta) , (d^2y)/(d theta^(2))=a(sintheta+thetacostheta) and (d^2y)/(dx^2)=(s e c^3theta)/(a\ theta)

If x+3costheta=2cos^(3)theta,y+2sin^(3)theta=3sintheta," then "(dy)/(dx)=

If x+cos^(3)theta=3costheta,y+sin^(3)theta=3sintheta," then "(dy)/(dx)=

If x=a(theta-sintheta),y=a(1-costheta) then (dy)/(dx)=