Generalizing the washer method | Applications of definite integrals | AP Calculus AB | Khan Academy

[@stephengibbs9310]

I finally get it! I’ve watched so many videos, reviewed notes, read the textbook and nothing. Halfway into this one it just clicked. Thank you so much!

[@rosskious7084]

Caught the concept the first video. He makes it easy to visualize what is happening in the problem. If you are struggling to understand this concept this is the video to watch.

[@mickasaur95]

He makes calc beautiful

[@geraldespinosa7888]

calc is a beauty already

[@iamstokk]

For real,

[@rohandaniel4627]

@@geraldespinosa7888 Yes

[@VergilPeterson]

@@geraldespinosa7888 🧢🧢🧢

[@erikfoster5798]

this was one of the concepts that was on the list of things I was struggling to understand and ultimately led to me changing majors a year ago. Luckily I didn't give up and I'm back in MTH 252 and we have this coming up soon. Thank you for the awesome explanation!!!

[@kaivynweissinger]

As an artist and a math tutor, well done on the drawings!!

[@Budgeman83030]

I wish KZbin existed 38 years ago when I took calculus in college. I’m learning more from math videos than I did in high school and college classrooms

[@sanstheskeleton04]

good luck on the exam guys!!

[@nazirdanish3109]

Best explanation ever, I finally can see the insider and outside of the washer. My instructor tried so many times to explain it to me but nope. finally I got it.

[@liv6883]

the thing that helps me more than anything is generalizing to actually understand the concept instead of varying examples. thank you so much :)

[@KatebeChisunka-ti1ke]

He makes sense,and I understood it..👌👌

[@mistercimba]

you got to really enjoy what you're teaching :)

[@MrMohab0]

*Hats off*

[@shiburaj7107]

very effective

[@shanghaidenver]

you really enjoy teaching, which to me is unbelievable and unfeasible

[@PraiseMaxwell-kr8rv]

Great explanation

[@sandrarisco2328]

So easy to visualize and understand!! Thanks for this

[@codybarrett6607]

Drawings are very helpful

[@matthewkoob7600]

Thank you!

[@HenggaoCai]

What if the cross section is a isosceles triangle or a equilateral triangle or a square?

[@thorodinson7467]

you can solve without calc? Just do normal volume

[@youz123]

thanks for amazing explanation

[@iamstickfigure]

Thankfully, I don't think the whole first thing is too common on Khan's videos. Most of the time, his audience is more educated than that.

[@davidrolston6014]

So outstanding!

[@Storiesof_jo]

Iam paying 55k a sem for my college and still have to watch this video to learn.

[@GellyBoy93]

I made this comment to stop people from saying first

[@JoePB216]

Calculus is so beautiful

[@yaltav]

Where does your voice come from Sir ?

[@xhappyponyxwasmyoldname1395]

Definitely American. I’d guess either Midwest, northwest, or mid-Atlantic

[@yashchauhan1556]

Probably throat

[@austincarlson9270]

@@xhappyponyxwasmyoldname1395 prolly an accurate guess

[@braedonvangorkom3408]

Thanks for the awesome explanation!

[@hitdhanani6053]

Thanks

[@mryup6100]

So basically the idea of using the washer method is to find the volume between two 3d shapes? For example, the truffle and the cone 1:03.

[@Eng586]

Yes, so you have an “outer” volume and it’s subtracted by the “inner” volume, finding the volume in the middle

[@anonymousrox]

If my answer comes out negative can i use absolute value or does that mean i did something wrong?

[@davidkrause9310]

You did the problem wrong

[@onplanetbanana]

Can someone tell me if 128pi/3 is the answer for the graphs of y=x² & y=4x about the Y axis? Please & thanks!

[@edwardforgione7660]

yep that is correct!

[@ahkh642]

يا الهي ماهذا الهراء

[@Eng.dimanoori]

😂

[@iPh03n]

This is so exciting. :)

[@gtfball10]

Helpful!

[@theodoresweger4948]

very well done and easy to follow thank you

[@ayeshatahira9691]

sir i have problem in finding the limits.. kindly help me . i have final exams this weak...

[@FatalUso]

Hey how did ur finals go?😂

[@ayeshatahira9691]

@@FatalUso hah satisfactory. got 3.68 GPA

[@hoteltrivago9504]

@@ayeshatahira9691 that's just satisfactory?

[@ayeshatahira9691]

@@hoteltrivago9504 yes. we compete for 4 GPA.

[@hoteltrivago9504]

@@ayeshatahira9691 congratulations, but how is 3.6 gpa satisfactory, It's the perfect gpa you can wish for. Well especially in my university ;)

[@TheSora117]

So that equation for the Volume, will that be the equation used for most problems that say use the washer method to solve?

[@feritbaturaltin8716]

this guy sounds just like old ted in himym

[@bludgeon1081]

The good old Washing Machine method.

[@mysticaxolotl8215]

XD