Calculus 9.1e - Integration with Substitution and Change of Limits

[MatthewHan95]

U dont have to change the [a,b] values in terms of u as long as you substitute back the original dx function backinto u right?

[derekowens]

@MatthewHan95 I think you have the right idea. You can do it either way, but don't do both at the same time.

[MatthewHan95]

@derekowens Okkk haha. thank you! :) Is it usually more efficient to find the new u values or should I just sub the original function back in ?

[derekowens]

@MatthewHan95 Not necessarily one or the other.  One method may present itself as the more natural approach in a given problem. Knowing both is good, though, and some questions on the AP Calc exam might specifically say to use one method or the other.

[daljksdhkajsadasd]

awesome!

you should team up with sal @ khanacademy. some of your videos would be perfect if they were on his playlist!

[xxGkSmasher]

wow this is wat im doin at uni, thanks for the help =D

[AK09RHS]

Their is a undefined limit of how awesome you are!!!

[deserteagle989]

good video, definitely a help to me study for my test tomorrow

[lasarikabab]

Very Very helpful! you make my life easier!

[annisdacoolest]

wow i just just finished u substitution a couple months ago in calculus and this is a great overview of what you're supposed to do

[seaking020492]

Hi. Nice video and all. Just like to point out that near the end, 8:30ish, you wrote 1/2 instead of 1/12

[derekowens]

Thanks. I try to keep a list of little mistakes, and I hope to get a chance to fix them some time soon. Thanks for pointing that out.

D.O.

[pshhockeyplaya]

Very helpful. Should help me on my quiz this afternoon.

[theInvigorate]

what software to use when making these videos