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SESSCALCET2 9.4.030.
Find all points of intersection of the given curves. (Assume $0 \le \theta \le \pi$. Order your answers from smallest to largest $\theta$. If an intersection occurs at the pole, enter POLE in the first answer blank.)
$r = \cos 3\theta$, $r = \sin 3\theta$
$(r, \theta) = (
(r, \theta) = (
$(r, \theta) = (
$(r, \theta) = (
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