The past few examples in my review book demonstrated u-substitution to integrate trig functions. The example I'm on suddenly shows integration by parts. The book doesn't explain why this method is used over u-sub.(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\int[/tex]sec^{3}x dx

In what situation am I supposed to use one method over the other?

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# Integration By Parts VS U-Substitution

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