IDNLearn.com is your go-to platform for finding accurate and reliable answers. Join our Q&A platform to access reliable and detailed answers from experts in various fields.

a) Show that a conic with focus at the origin, eccentricity e, and directrix x d  has polar equation
1 cos
ed r e    .

b) Show that a conic with focus at the origin, eccentricity e, and directrix y d  has polar equation
1 sin
ed r e    .