9. Polar Equations

Given the point in cylindrical coordinates $(-4,3,4)$, what are its spherical coordinates $(\rho ,\theta ,\phi )$?

Given the polar coordinates $(3,\frac{\pi }{4})$, what are the corresponding Cartesian coordinates?

What are the rectangular coordinates of the point whose polar coordinates are $(3,\frac{\pi }{6})$?

Convert the point to rectangular coordinates.

$(-2,-\(\frac{\pi}{4}\))$