Question: Luke Skywalker is in trouble on the outskirts of the Delta Epsilon system where his spaceship has been caught in an Empire tractor beam. R2-D2 has determined that his flight path under the influence of the beam is given by the parametric equations. x=2cos(t) and y=sin(t), where t is time in minutes and the linear measurement in kilometers. The little droid has located the nearest rebel base at coordinates (0,-4).