Question

Find an equation equivalent to x^2 - y^2 = 4 in polar coordinates.

a. cos^2 theta - sin^2 theta= 4r
b. cos^2 theta - sin^2 theta= 4
c. rcos2 theta= 4
d. r^2 cos2 theta =4

Answer 1

Basically just plug in these things to convert to polar coordinates:

x=r*cos theta
y=r*sin theta