My latest attempt after a variety of tries with U substitution, probably missing something obvious but the calculator also got something different so I'm beyond confused : r/calculus
Solved Evaluate the integral by Reciprocal Substitution n dx | Chegg.com
Weierstrass Substitution
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Trig Substitution Calculator Online, 53% OFF | www.alforja.cat
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Symbolab Blog: Advanced Math Solutions – Integral Calculator, the basics