Question 608363
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<img src="http://www.math.ucsd.edu/~jarmel/math4c/Unit_Circle_Angles.png">


Cosine is the *[tex \LARGE x] coordinate of the point where the angle terminal ray intersects the circle and sine is the *[tex \LARGE y] coordinate.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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