Thanks to those who realised that I had typed the question wrong... here is the correct version
Please may someone help me solve this question:
A curve is defined by the parametric equations
x = 5 + 2cosθ, y = 3cos2θ
a) Show that dy/dx = 6cosθ
b) Verify that 2(y+3) = 3(x-5)^2 is a cartesian equation for the curve
Thank you so much !