Change from rectangular to cylindrical coordinates. (Let r 0 and 0 2 ) (a) (-9, 9, 9) (b) (-5, 53, 3)

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

(a) (-9, 9, 9)

(b) (-5, 5√3, 3)