If `x=a(cost+logtan(t/2))` , `y=asint` find `dy/dx`

x=acost,y=asint . find dy/dx

x=acos^(2)t,y=asin^(2)t find dy/dx

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

Find (dy)/(dx) , if x=a(cost+logtant/2) , y=asint

If x and y are connected parametrically by the equations without eliminating the parameter, Find dy/dx x = a (cost + log tan (t/2)), y = a sint

If x=a(cos t+(1)/(2)log tan^(2)t) and y=a sin t then find (dy)/(dx) at t=(pi)/(4)

If x=a{costheta+logtan""(theta)/(2)}" and "y=asintheta, then (dy)/(dx) is equal to

If x=a(t-sint), y=a(1-cost) then find (d^2y)/(dx^2) .

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)