(a) Show that the polar equation of an ellipse with directrix x = €“ d can be written in the form

(b) Find an approximate polar equation for the elliptical orbit of Earth around the Sun (at one focus) given that the eccentricity is about 0.017 and the length of the major axis is about 2.99 X 108 km.

Transcribed Image Text:

a(1 - e) 1- e cos e