Question 978331
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For your first question, substitute each of the values for x in the equation and do the arithmetic.  One of the values will give you a true statement, and the other will give you a false statement.


For the other one, if I subtract x from y, I get y - x


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

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