Doing double Feynman Integration on this hidden Dirichlet Integral ( improper sin^2(x)/x^2 )

Merch :v - https://teespring.com/de/stores/papaflammy Help me create more free content! =) https://www.patreon.com/mathable Leibniz Integral rule: https://youtu.be/wkh1Y7R1sOw Arctan Integral: https://youtu.be/_zqHrFKJsFY First time Dirichlet: https://youtu.be/ggFYBssFTkU Second time Dirichlet: https://youtu.be/xWlchgxbQwk Using Laplace transform: https://youtu.be/6y0y1pX1bDY Let us finish this week off with this sweet piece of Integral cake! Never has the evaluation of pi been this good looking :v Twitter: https://twitter.com/FlammableMaths Visit my website! =) https://mathable.me/