exo7 2046

Tracer les courbes paramétrées suivantes
$$x (t) = \cos^{2} (t) \qquad y (t) = \cos^{3} (t)\sin (t)$$ $$x (t) = \frac{t}{1 + t^{4}} \qquad y (t) = \frac{t^{3}}{1 + t^{4}}$$ $$x (t) =t^{2} + \frac{2}{t} \qquad y (t) = t + \frac{1}{t}$$ $$x (t) = \frac{1-t^{2}}{1 + t^{2}} \qquad y (t) = t\frac{1-t^{2}}{1 + t^{2}}$$ $$x (t) =\tan (t) + \sin (t) \qquad y (t) = \frac{1}{\cos (t)}$$ $$x (t) = \sin (2t) \qquad y (t) = \sin (3t)$$