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Evaluate the indefinite integral.$\int \frac{\cos (\pi / x)}{x^{2}} d x$
$-\frac{1}{\pi} \sin \left(\frac{\pi}{x}\right)+C$
Calculus 1 / AB
Calculus 2 / BC
Chapter 5
Integrals
Section 4
The Substitution Rule
Integration Techniques
Missouri State University
Campbell University
Oregon State University
University of Michigan - Ann Arbor
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Okay, So if we have you is equal to pi over acts so that negative one over pi that's one over pi times do you is equal to one over X square times the ex applying the substitution we end up with weaken Pull the negative one over pi out times integral off the coastline of you Do you This is native one over pi times the sign of you plus c negative one over pi times the sign off pie over acts by vac substituting plus c
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