Question 340965
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Recalling that *[tex \Large -\frac{\pi}{6}\ =\ \frac{11\pi}{6}] and that the sine function is given by the *[tex \Large y]-coordinate on the unit circle, look up your value on the unit circle.


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


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