Since many of you found the PatrickJMT videos on integration by substitution, helpful, here are his videos for integration by parts:
Here are two additional videos on trickier integration by parts–these come up in some of the extra credit WebWork exercises:
I went through an example similar to the last video after class today–here is a snapshot of the blackboard:
![](https://openlab.citytech.cuny.edu/mat1575-ganguli-spring2023/files/2023/02/20230228_121445-1-1024x314.jpg)
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