Integral of 1/(x^2+1) from -inf to inf, Contour Integral

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In this freestyle, right on the spot lecture, Dr. Peyam explains how to integrate 1/(x^2+1) from -inf to inf by using contour integration from complex analysis. This is a great starter for the people who are interested in this topic!

Check out Dr. Peyam for the integral of 1/(x^n+1) from 0 to inf,    • Integral 1/x^n + 1 from 0 to infinity  



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100/(1-x)