Arc Length (KristaKingMath)

Arc Length calculus example.

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Hi, I’m Krista! I make math courses to keep you from banging your head against the wall. ;)

Math class was always so frustrating for me. I’d go to a class, spend hours on homework, and three days later have an “Ah-ha!” moment about how the problems worked that could have slashed my homework time in half. I’d think, “WHY didn’t my teacher just tell me this in the first place?!”

[kristakingmath]

Sorry I don't have more difficult problems at the moment. As I continue, hopefully I'll be able to add more down the road. Thanks for the feedback.

[kristakingmath]

@willgrandson You're welcome! Thank you so much for watching!! :)

[kristakingmath]

@ievier You're welcome! Thanks for your support! :)

[honeynugs]

this is the second time you pulled me out of a jam and i'd like to thank you...again. stay blessed. peace.

[davidferna]

Also, thanks to your videos now I'm in Calculus 2, and I got an A in Calculus, even though it was my first time taking it. Thank you so much. I'm always going to go to your channel for help. :) Keep it up and thank you!

[kristakingmath]

@cendrizzi Thanks for the feedback! I'll have to consider different formats so that I'm doing whatever is easiest for people. I'll try to change it up sometimes and see what people say. :)

[kristakingmath]

i have lots of videos about sequences and series! :) you can find them on my channel, or you can just type the topic that you need into youtube, and include "integralcalc", and any videos i have about that topic should come up. :)

[ABetterYou]

Yeah absolutely! We Filipinos, especially me love people like you. Continue to share your knowledge. God Bless, God will do the favor for you. I love you more! =))

[infinitymfg]

This is an awesome channel. I love how you have progressed over time. You started out with a whiteboard and moved on to better and better content.

[Akunbekov]

This example has exactly the point I was missing which is getting perfect square before going into substitution method. Thank you

[kristakingmath]

@jaredruscoe No, it doesn't always work out perfectly that you can find a square under the square root, unfortunately. But, say you've got x^2+1 under the square root, you can always convert to (x^2+1)^(1/2) and then use Chain Rule to take the integral. You'd get [(x^2+1)^(3/2)]/[3x]. :)

[kristakingmath]

@Afsarbjay I'll continue to add videos, and at some point make them more difficult. :)

[ptyptypty]

great Video!! Nicely done I can't believe you did this video SIX YEARS AGO!!.. wow... where does the time go?.... it's been interesting following your Evolutionary process when it comes to HOW you present a video. Thank you !

[AdrielGreene]

I appreciate the concise and detailed explanation.

[kristakingmath]

@ievier depends on what you're left with under the square root. Try plugging your integrals into wolframalpha(dot)com. It's a great computation engine that might be able to give you the steps you take to complete the integration. :)

[suhidevil]

Thank you so much! It's because of you why I still have a chance to pass this class :)

[kristakingmath]

@suhidevil9 Aww, you're welcome! I know it's difficult at times, but hang in there.

[kristensmedbron]

Thank you! You are always easy to follow!

[kristakingmath]

You're welcome! I'm so glad!! :)

[kristakingmath]

Congrats on the A! :) Good luck with calc 2. I'll be here to help with videos as much as I can. :)