sin^(n)theta_(theta)(dy)/(dx)=cos(x+y)+sin(x+y)dx

If (cos^(4)theta)/(x)+(sin^(4)theta)/(y)=(1)/(x+y), (theta " is constan t") then (dy)/(dx)=

If x=cos theta,y sin^(3)theta, prove that y(d^(2)y)/(dx^(2))+((dy)/(dx))^(2)=3sin^(2)theta(5cos^(2)theta-1)

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

If x=-a(theta-sin theta),y=a(1-cos theta), then (dy)/(dx) is

x=a(theta-sin theta), y= a (1+cos theta) find (dy)/dx "at " " " theta=pi/2 .

If x=a(theta-sin theta) and,y=a(1+cos theta) find (dy)/(dx) at theta=(pi)/(3)

Find (dy)/(dx) : x=a sin^(2) theta cos theta, y= 2b cos^(2) theta (-sin theta)

if x=sin theta+theta cos theta,y=cos theta-theta sin theta then ((dy)/(dx))_(theta=(pi)/(2))=