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Understanding Polar Coordinates Practice Test
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Q1
The polar coordinates of a point are $\left(2.1, \frac{7\pi }{3}\right)$. Give its 
-coordinate in the rectangular coordinate system (nearest hundredth).
The polar coordinates of a point are $\left(2.1, \frac{7\pi }{3}\right)$. Give its
-coordinate in the rectangular coordinate system (nearest hundredth).