Change from rectangular to cylindrical coordinates. (Let r ≥ 0 and 0 ≤ θ ≤ 2π.)

Question

(a)
(3, −3, 2)

(b)
(−2, −2sqrt3, 5)

Answer 1

same as polar coordinates:

r^2 = x^2+y^2
tanθ = y/x