Question 229806
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ =\ r\cos\Theta]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ y\ =\ r\sin\Theta]


Just plug in the values:.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ =\ 20\,\cos\,140]°


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ y\ =\ 20\,\sin\,140]°



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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