Question 987906
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A contradiction is a statement that cannot be true regardless of the value of the variable.  An identity is a statement that is always true regardless of the value of the variable. *[tex \Large x\ +\ 4\ =\ 21] is true for one particular value of the variable but false for any other value of the variable.


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

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