Question 569341
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The first and most important lesson to learn in any field of endeavor, and most particularly in the study of mathematics, is the ability to read and follow instructions.  Go back to the page where you posted your questions and re-read (or read for the first time as the case may be) the rather clearly couched instruction that says you may only ask one question per post.  Write back when you have read it a sufficient number of times such that you fully comprehend the concept.


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