" Q.6.If "x=a(20-sin2 theta)" and "y=a(1-cos2 theta)," find "(dy)/(dx)" when "theta=(pi)/(3)

If x=a(2 theta-sin2 theta) and y=a(1-cos2 theta) find (dy)/(dx) when theta=(pi)/(3)

If x=a(2theta-sin2theta) and y=a(1-cos2theta) find (dy)/(dx) when theta = pi/3

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

If x=a (theta-sin theta) and y=a(1-cos theta) , find (d^(2)y)/(dx^(2)) at theta=pi.

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

x=sqrt(sin2 theta),y=sqrt(cos2 theta) then find (dy)/(dx)

If x = a (theta + sin theta), y = b (1+ cos theta), then (dy)/(dx)" at "theta = (pi)/(2) is:

If x=a(cos 2 theta+2 theta sin 2 theta) " and" y=a(sin 2 theta - 2 theta cos 2 theta) , find (d^(2)y)/(dx^(2)) " at" theta =(pi)/(8) .

If x=a(cos 2 theta+2 theta sin 2 theta) " and" y=a(sin 2 theta - 2 theta cos 2 theta) , find (d^(2)y)/(dx^(2)) " at" theta =(pi)/(8) .