# Indefinite Integrals : Integration by Parts

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8. Use integration by parts to evaluate the given integral.

integral arctan x dx

9. Determine the divergence or convergence of the given improper integral. Evaluate the integral if it converges.

integral ^ infinity 1 / (e^x + e^(-x)) dx

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##### Solution Summary

Indefinite integrals are found using integration by parts.

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