Question

If r does not equal 0, which of the following polar coordinate pairs represents the same point as the point with polar coordinates (r, theta) Select all that apply. (There are 2 correct answers)
a) (-r, theta + 2 pi)
b) (-r, theta + pi)
c) (r, theta + 3pi)
d) (r, theta -2pi)

Answer 1

Answer:

(-r, θ+ pi) & (r, theta-2pi)