" Find "(dy)/(dx)x=2cos^(2)t,y=6sin^(2)t

Find (dy)/(dx):x=a{cos t+(1)/(2)log tan^(2)(t)/(2)} and y=a sin t

Find dy/dx, x=3 cos t-2cos^3t , y=3sint-2sin^3t .

If x and y are connected parametrically by the equations given,without eliminating the parameter,Find (dy)/(dx)x=(sin^(3)t)/(sqrt(cos2t)),y=(cos^(3)t)/(sqrt(cos2t))

Find (dy)/(dx) if: x=a(cos t+(1)/(2)ln tan^(2)(t)/(2)) and y=a sin t.x=sin t sqrt(cos2t) and y=cost sqrt(cos2t)

Find (dy)/(dx) if:- x = sin t,y= cos t

Find (dy)/(dx) when : x=a(2t+sin2t), y=a(1-cos2t)

Find (dy)/(dx) if x =a ( cos t + t sin t ), y = a ( sin t - t cos t).