Juan Pablo R.
asked • 05/20/21
Use u-substitution to find the integral of this rational integrand
Dom V.
answered • 05/20/21
Cornell Engineering grad specializing in advanced math subjects
u = x3-x
du = (3x-1)dx
Integral -> Int[ du/(u+2) ] = ln(|u+2|)+C = ln(|x3-x|) + C
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Juan Pablo R.
The derivative of x^3-x should be 3x^2-1 not 3x-105/20/21