Disk Washer Method to Find the Volume of Solids of Revolution | Calculus 2

[@____Paul____]

You're contributing a lot to the world here, one clear explanation at a time! Thank you!!

[@QuocDatPhung]

Thank you for your kind words Paul!

[@deborahmminele9902]

very much appreciate how you patiently guide us on how to go about this tricky section. You made my life easier and I will never be able to thank you enough🙏🙏

[@QuocDatPhung]

I'm so happy to hear that Deborah! Please kindly subscribe and share with your friends my Calculus playlist: ua-cam.com/play/PLeTO6OT3-FKmuCeO97iKt_Aibx-a938JA.html

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Thank you for taking the time to create this video.

[@QuocDatPhung]

It's my pleasure! Please kindly subscribe and share with your classmates! Here's the rest of my Calculus videos in a playlist: ua-cam.com/play/PLeTO6OT3-FKmuCeO97iKt_Aibx-a938JA.html

[@ptyptypty3]

I've said it before and I WILL SAY IT AGAIN.... you are the BEST !!! your explanations and diagrams are PERFECT !! Keep up the great work!! you are smart and Talented!!! thank you!!

[@QuocDatPhung]

Thank you so much! I'm really happy my explanations are helpful! Please find all of my Calculus videos attached in this playlist: ua-cam.com/play/PLeTO6OT3-FKmuCeO97iKt_Aibx-a938JA.html

[@Cactusszss]

I love this guy he has helped me so much thank you so much for making these videos your the reason I'm passing calc 2

[@QuocDatPhung]

I'm really happy to hear that!

[@Recordie-wv2lo]

HIIIII THANK YOU SO MUCHH, IT'S REALLY HELPING THAT YOUR EXPRESSIONS IS NOT SCARY. IT WAS LIKE TLKING TO MY CLASSMATE VIA VIDEOCCAALLL TENKIESS

[@QuocDatPhung]

Haha thank you! Don't forget to share with your classmates and kindly subscribe ~ you can find all of my Calculus II videos in this link: ua-cam.com/play/PLeTO6OT3-FKmuCeO97iKt_Aibx-a938JA.html

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Thank you from Iraq ...you are very talented...

[@amalas1212]

😊😍Thank you and keep going ❤❤❤. I follow you from Jordan

[@QuocDatPhung]

Thanks so much Amal! Please don't forget to subscribe and share with your classmates :) I want these videos to help others too! As well, you can find the rest of my Calculus videos in this playlist: ua-cam.com/play/PLeTO6OT3-FKmuCeO97iKt_Aibx-a938JA.html

[@notavailable773]

This is so well explanation. Thanks 😊

[@QuocDatPhung]

Thank you NotAvailable :)!! I'm really glad you enjoyed my video! I would really appreciate if you could share with your classmates or kindly subscribe ~ you can find all of my Calculus II videos in this link: ua-cam.com/play/PLeTO6OT3-FKmuCeO97iKt_Aibx-a938JA.html

[@na.1221]

Thanks teacher

[@QuocDatPhung]

Thank you Nardos! Your comments mean a lot to me :;))))

[@na.1221]

​@@QuocDatPhung oh! but please don't forget your promise in English grammar because I will be expect any time!

[@QuocDatPhung]

@@na.1221 In two weeks, I will start to make some English videos! Coincidentally, my friend is an English teacher and she's also asking me to make some English videos too! I will start with the basics: alphabets, learn about days of the weeks, days of the months, different names for colors, etc. Please let me know if you have specific topics in mind.

[@na.1221]

@@QuocDatPhung Those are very very simple. can you will be work it like conditional sentence, relative pronoun, diphthongs, articles, preposition, adverb, demonstrative pronoun, conjunction, tenses, auxiliaries, reported speech, passive and active voice, punctuation and so on.

[@QuocDatPhung]

@@na.1221 Thanks for your input. I will try my best.

[@SN-ow1bp]

amazing video, do you have any videos covering the latter topics of calc 2 such as series and partial derivatives?

[@QuocDatPhung]

I'm working on those! For the moment I have more than 30 videos in my Calculus 2 playlist: ua-cam.com/play/PLeTO6OT3-FKmuCeO97iKt_Aibx-a938JA.html

[@nic4090]

Dumb question, but how come we don't subtract here? 33:07 because don't we subtract the missing middle space?

[@QuocDatPhung]

Hi Nic, what missing space are you referring to?

[@nic4090]

Sorry, my fault. I just realized we're applying the Disk Method, not the Washer Method. For some reason, I thought they were the same thing.

[@QuocDatPhung]

@@nic4090 I believe they are the same thing. I have a video on the trick when to use dish washer method v.s cylindrical shell. It's the first video in the link, I hope this would help: ua-cam.com/play/PLeTO6OT3-FKmuCeO97iKt_Aibx-a938JA.html

[@Abid-qp2jm]

tankoo tankoo

[@QuocDatPhung]

I'm glad it helped! Don't forget to subscribe and share with classmates!