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Reddit Feynman Integral. We calculate the integral from 0 to 1 of x^2 - 1 / lnx using two methods: the Feynman technique and classical u substitution. Both methods are useful in physics and a must learn for beginning calculus students and anyone interested in integrals and integration.
0:00 Feynman way
3:49 u sub way
Feynman integration: • But I AM joking, Mr. F... 
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