Area of a Surface of Revolution Calculus 2

[FAEM-jirv]

I love the fact that you derive the formulas for calculus rather than just giving viewers the fomulas. Youre awesome!

[profrobbob]

Now Closed Captioned #Calculus  Area of a Surface of Revolution

[georgesadler]

Professor RobBob, thank you for a well explained video/lecture on the Area of a Surface of Revolution in Calculus Two. The derivation and explanation of the Area of a Surface of Revolution helps me with understanding this material. The examples/problems are straight forward from start to finish.

[SalvadorSTMZ]

Amazing. Can't believe im getting to learn all this as a freshman. Thanks to you!

[MadOrange]

Cool, looking forward to sequences and series videos.

[flawns]

Thank you! We just passed this and are on Taylor series (so interesting!) I will come back before the final for review/recap

[Abdoolkasim]

Very useful video! Thank you very much! I really appreciate your effort and enjoy watching it!

[MsAlice]

Hi Bob. Is it okay for you to do a video related to the path function and line integral? I really find your videos helpful!!!

[maxaltamimi]

Thanks again prof!! u have been lifesaver!, oh by the way the new HD videos and the mic that ure using is just so cool and nice, i love so loud and clear:)) 

[tylerhardin]

I used Trig substitution to take the integral. Will I arrive at the same answer? Not allowed to use graphing calculators on tests. Great Videos, Thank you!!

[alexsomedays]

Why would the r(x) not be the equation of the curve ((-1/2x^2)+8)?

[dtello]

Hey ProfRobBob. At 23:12 should the denominator be 4x^6 still when you change 1 to 4x^6/4x^6? before you plug into the formula should it be ((x^6)+1/2x^3)^2? Also why did the x^6+1 change to x^6-1 when you plugged it into the formula at 25:20?

[bobzillathebabykicker]

Problem I have is in my Calc. 2 course, we have a Exam problems that cover z-axis interpretation evaluated on an x integral. But the professor has only covered basic xy examples. I have 0 idea how to approach these.

[BilalAhmed-onkd]

why do we use frustums here but disks for volume

[mka]

Is this same as Parametric Surfaces and their Areas?

[Adrian-Carstea]

Nice tutorial, but in all the examples you used the wrong formula, I mean you used the formula as revolving about x axis NOT y axis as the problem asked.

[izreyo]

can sqrt of 1 + x^2 simplified to 1 + x?

[donhancock]

That one model looked like an alien spacecraft.

[juanmontano]

did he just fart in the beginning of the video????