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U-sub vs reverse chain rule (1 Viewer)

TheShy

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Nov 12, 2018
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2021
So im self-learning integration and im up to reverse chain rule. I done u sub before, and when I check my answers on wolframalpha, it often does it by u-subbing. So are they similar? And are there any qestions where reverse chain rule is better than u subbing?
 

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