01-08-2016
Mathematics

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Find the rectangular coordinates of the point with the polar coordinates (-7, 5pi/3)

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konrad509 konrad509

01-08-2016

[tex]\left(7\cdot\cos \dfrac{5\pi}{3},7\cdot\sin\dfrac{5\pi}{3}\right)=\left(7\cdot\dfrac{1}{2},7\cdot\left(-\dfrac{\sqrt3}{2}\right)\right)=\\ \left(\dfrac{7}{2},-\dfrac{7\sqrt3}{2}\right)[/tex]

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