Question 645502
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Can't help you.  You used symbols that don't render on other people's computers. Besides, you only get to ask one question per post.  BTW 5a is one question, 5b is a second question, and so on.


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