<PRE><B>Question 632151</B>
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Gauss-Jordan was pretty clean on this one, while substitution was a little ugly.  Regular elimination was reasonably tidy also.  But my favorite, just because I can use the MDETERM function to get the determinant of a matrix that I have entered into Excel (this function is also available in the Numbers program on the Mac), is to use Cramer&#39;s rule.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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