Question 987676
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ c\ +\ d\ =\ 55.6]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ c\ -\ d\ =\ 1.8]


Solve the 2X2 system for *[tex \Large c] and *[tex \LARGE d]


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

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \