Question 566833
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because *[tex \Large \cos\left(95^\circ\right)\ =\ -\cos\left(85^\circ\right)]


Look at the unit circle, recall that the cosine function is the *[tex \Large x] coordinate, and note that 85 degrees is 5 degrees ahead of 90 and 95 degrees is 5 degrees past 90.


<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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