Identify the coordinates of the point in polar form based upon the given conditions.
Use pi for π\displaystyle \pi.

r>0\displaystyle {r}>{0} and 0<θ<2π\displaystyle {0}<\theta<{2}\pi
(\displaystyle {(}   ,   )\displaystyle {)}

r<0\displaystyle {r}<{0} and 0<θ<2π\displaystyle {0}<\theta<{2}\pi
(\displaystyle {(}   ,   )\displaystyle {)}

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