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Mathematics 12 Online
OpenStudy (anonymous):

Please Help. Find the rectangular coordinates of the point with the polar coordinates (-5, 5pi/2)

OpenStudy (fibonaccichick666):

So draw a picture

OpenStudy (fibonaccichick666):

in the polar plane

OpenStudy (anonymous):

\[x=r\cos(\theta)\]\[y=r\sin(\theta)\] that is all

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