How to prove that the limit does not exist (KristaKingMath)

Learn how to prove that the limit does not exist. Investigate the existence of the left-hand limit, the right-hand limit, and then whether or not the left-hand limit is equal to the right-hand limit.

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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]

I was able to tutor calculus throughout college and loved it. So when I finished college, this was one way I could sort of continue that. :)

[kristakingmath]

Yes. If you have a top and bottom function, and a left and right function, you can take the definite integral from the left function (lower bound) to the right function (upper bound) of the top function minus the bottom function. Hope that helps to get you started! :)

[aliel-shinawy]

it's always you have can make me understand math without mking any effort.. Your videos are extremely helpful.. you are a saver. THANK YOU

[crowleyadam]

Excellent explanation and pacing was just perfect, thanks

[jigarpatel]

coz of dis problem i was suffering in headache and by ur good explanation it smoothened my calculus

[nikhilpathania]

I am preparing for JAM Examination, so I asked my teacher for a channel then he told me about your channel and I'm so glad to know about your channel and I must say thanks a lot 🌹🌹🌹

[DrRisk]

learned more in 6 seconds than a week in my math class

[SoloPro]

Thanks for explaining it so easily i much appreciated watching this. It helped me explain how to prove if a limit does not exist as you titled it... keep up the great work!

[mikeyyboi]

This was literally the best video about this subject I learned more in this 6 min video then I have learned all month about this thank you so much!!!

[TheTorridestCheese]

Thank you so much! I have probably the worst teacher ever, and when we covered this, I didn't even know what the question was asking! You cleared it up for me! Seriously thank you!

[kristakingmath]

If you need it, I have a video about the delta-epsilon proof, but the video is called Precise Definition of the Limit. :D

[michaellopez]

You and Nancy have saved me so much time. Thanks!

[kunalchoudhary]

Great explanation dear, can you please solve these type of questions by cauchy's criterion

[regcea]

I'm so amazed with your videos! Thank you for sharing those. I'm learning a lot from you! God bless you!

[Joke]

The infinite fraction of one (which is statically defined by a dynamic observer), is as undefinable as 0 (which is non-existant, hypothetical at best) or as undefinable as infinite : undefinable because '1' doesn't have a beginning or ending as being a dynamic value, stated by the limit of the establishment of the observer, and because of the physical incapacity to be imagined in numbers by the same observer ;)

[shailendrajha]

Your concept are very understandable for each other.either they are maths students or not..they understand very well .. thanku very much mam

[tronghai]

You imagine 2 petals of flowers as 2 oppose functions in a limit that do not exists minus 1 and plus one, then with an link X function in the gap between minus one and plus one. By doing so the limit which does not exist become a continuity function by the function x or minus ax or plus ax. So by computing dynamics you have solve the discontinuity and the continuity of a limit of a function with no limit. These functions are very important in aerodynamics computing dynamics of their graphing functions. The function x in the gap of the no limit functions of the petals minus one plus one will give the continuity to the non continuity of a no limit function.

[robertp]

Super helpful! I totally forgot approaching from left and right for limit and this will be so useful @-@ ty ty ty

[riyasingh]

Thank u so much for explaining so well❤
I also learned the correct definition of existence of limit....
(From India)

[francisayine]

Great video. So does that mean you only have use any values at the right hand side, negatives of each other and compute their limits after which, you compare them?