Limits at Infinity & Horizontal Asymptotes

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  • Опубліковано 20 лют 2018
  • This calculus video tutorial explains how to evaluate limits at infinity and how it relates to the horizontal asymptote of a function. Examples include rational functions, radical functions, inverse trigonometric functions and exponential functions. This video contains plenty of practice problems on evaluating limits at infinity analytically with radicals, square roots, and trig functions.
    Introduction to Limits:
    • Calculus 1 - Introduct...
    How To Evaluate Limits From a Graph:
    • How To Evaluate Limits...
    Evaluating Limits By Factoring:
    • Evaluating Limits By F...
    Limits of Rational Functions :
    • Limits of Rational Fun...
    Limits of Radical Functions:
    • How To Evaluate Limits...
    Limits of Trigonometric Functions:
    • Limits of Trigonometri...
    ___________________________________
    How To Find The Limit at Infinity:
    • How To Find The Limit ...
    Infinite Limits + Vertical Asymptotes:
    • Infinite Limits and Ve...
    Limits at Infinity With Radicals:
    • Limits at Infinity Wit...
    Limits of Absolute Value Functions:
    • Limits and Absolute Value
    Limits of Composite Functions:
    • How To Find The Limit ...
    The Squeeze Theorem:
    • Squeeze Theorem
    ____________________________________
    Limits and Logarithms:
    • Limits and Logarithms
    Limits of Exponential Functions:
    • Limits of Exponential ...
    Piecewise Functions - Limits:
    • Piecewise Functions - ...
    3 Step Continuity Test:
    • 3 Step Continuity Test...
    Continuity and Differentiability:
    • Continuity and Differe...
    Limits - Test Review:
    • One Sided Limits, Grap...
    _____________________________________
    Final Exams and Video Playlists:
    www.video-tutor.net/
    Full-Length Videos and Worksheets:
    / collections

КОМЕНТАРІ • 305

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  Рік тому +20

    Final Exams and Video Playlists: www.video-tutor.net/
    Math and Science Tutors: bit.ly/Find-a-Tutor
    Next Video: ua-cam.com/video/fHzmQmcvheI/v-deo.html

    • @inemibok
      @inemibok Рік тому

      Can someone please explain why at 10:13 he multiplied both top and bottom by 1/x instead of 1/x²
      @The Organic Chemistry Tutor
      Tnx ❤️

  • @o.g.dominus
    @o.g.dominus 3 роки тому +2030

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      @fazalshaik8399 3 роки тому +5

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      @fazalshaik8399 3 роки тому +8

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      @o.g.dominus 3 роки тому +68

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      @fazalshaik8399 3 роки тому +9

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  • @adamantcapitol
    @adamantcapitol Рік тому +247

    Your explanations are simply the best. I appreciate so much that you don't take shortcuts and aren't afraid to review the fundamentals during the examples. I wish I could pay you for my Calculus class instead of my university.

  • @splendidjihoon5464
    @splendidjihoon5464 5 років тому +518

    i wasted my 3 hrs listening to my calculus teacher without learning it. and now, i learned it instant for only 20 min. wow. thanks

    • @pandavx
      @pandavx 3 роки тому +13

      x2 the speed and learn it in 10 min

    • @alikhidzam3749
      @alikhidzam3749 3 роки тому +6

      My calculus teacher dint even teach how to find the limit of infinity

    • @diglis1033
      @diglis1033 2 роки тому +5

      @@alikhidzam3749 you serious? That should be one of the first things you learn in calc 1

  • @afrolly2215
    @afrolly2215 5 років тому +377

    You’re a life saver man I love your videos, you explain better than my college professor lol

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    @munenebrilliant1774 6 років тому +229

    God is using you man .

  • @georgesadler7830
    @georgesadler7830 Рік тому +21

    MR. Organic Chemistry Tutor, thank you for an excellent explanation of Limits at Infinity and Horizontal Asymptote in Calculus One/Two.

  • @jailkhan8548
    @jailkhan8548 2 роки тому +54

    In 20 mins i have learned more than I ever did from my prof's lectures.

  • @user-tw4kt8du9t
    @user-tw4kt8du9t 4 роки тому +14

    I actually dont know how many extra hours I would spend on calc without your videos. Thanks so much. Youre a god.

  • @Mayoda4real
    @Mayoda4real 2 роки тому +6

    This man just proves how bad, some university teachers are, they are paid a bunch of money but can't teach shit. This man makes it so simple to understand. Thanks for this channel

  • @nicholasachuz8329
    @nicholasachuz8329 2 роки тому +30

    This was helpful as always, yet it is still challenging to me a little bit because there's no consistency in the procedures so that we can use the same approach to every rational function.

  • @omarahmad2311
    @omarahmad2311 2 роки тому +8

    My prof is a German teacher with the heaviest accent ever, I also don’t really understand her method, but this one man explains in one clear shot 💯

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    @williamessel2958 Рік тому +15

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    • @user-np7nk3cj3v
      @user-np7nk3cj3v 27 днів тому

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      @user-np7nk3cj3v 27 днів тому

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    @shuhadakherudin5468 3 роки тому +1

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  • @tranquoclan5043
    @tranquoclan5043 3 роки тому +6

    At 11:35, since x goes to infinity, I think that we have to consider both case: (1) x goes to positive infinity and (2) x goes to negative infinity. In case (1), the answer is 2 (positive 2), but in case (2) the answer is -2 (negative 2) . In this problem, the method divide both numerator and denominator by 1/x is not a good choice. Instead, divide both numerator and denominator by 1/abs(x) (abs(x): absolute value of x) would be more generally correct. In case (1), 1/abs(x) equals 1/x (positive 1/x) and in case (2), 1/abs(x) = 1/-x (negative 1/x).

  • @blaq-barbieandnick497
    @blaq-barbieandnick497 2 роки тому +8

    why do we have to multiply the fraction by 1/x😢

  • @iiii1450
    @iiii1450 5 років тому +39

    you are really really really helping me in physics and also calculus, man you are really better than all the professors in my university you are a great teacher i am really rely on you man thank you soooooo much

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      @garangbol793 4 роки тому +1

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      @m7mdarwani964 4 роки тому +1

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    @daneshipway581 3 роки тому +4

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    @darthTwin6 Рік тому

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    @youssefosama4466 6 років тому +98

    Keep it up man,you're a huge help

  • @samiulislamdurjoy
    @samiulislamdurjoy 3 роки тому +8

    G 191 11:38
    note 5:25 any time the function is bottom heavy with infinity limits the functions is equal to zero
    note 5:25 any time degree is equal the ans is coefficient ratio

  • @suverchasharma1814
    @suverchasharma1814 3 роки тому +3

    Thank you so much, the wide range of examples really helped me out!

  • @frankchitala1164
    @frankchitala1164 11 місяців тому

    well articulated and i could go on and work out on the rest of the questions on my own.
    🙏

  • @supernova9752
    @supernova9752 9 місяців тому +1

    thank you so much, you're saving my calculus grade and i'm actually learning and understanding what to do

  • @jazzm786
    @jazzm786 Рік тому

    this is suchhh a good explanation. i needed this step by step explanation

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    @HAHA-rf4dc 3 роки тому +6

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    @cloudslady3400 2 місяці тому

    The best thing about this guy is how short his videos are I spent days and days studying with zero results…in less than twenty minutes it all makes sense

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    @SenumiDinanga 3 роки тому +7

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  • @sofzhuk1188
    @sofzhuk1188 3 роки тому

    first calc test tomorrow and I think you'll be the reason I pass :) thank you

  • @maryam4587
    @maryam4587 4 роки тому +62

    "The exponent doubles once you move it inside" 19: 21 I bet many of you are confused but hopefully this one sentence help just like it helped me lol

    • @sharansahota5498
      @sharansahota5498 4 роки тому +2

      thank youuuu I was confused on that

    • @kofi4927
      @kofi4927 3 роки тому +1

      bruh i was hella confused about this before i saw this video

  • @mmatlouchristainah4947
    @mmatlouchristainah4947 4 роки тому +2

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  • @daniellakayedolotalias3326
    @daniellakayedolotalias3326 7 місяців тому

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  • @madhuradeshmane9612
    @madhuradeshmane9612 Рік тому +1

    thank you ,learned a lot in this video and you are a huge help

  • @yapsejaiteh7
    @yapsejaiteh7 3 роки тому +2

    Your explanation are really clear and understandable. Your videos are really helping me

  • @hanslarrobis117
    @hanslarrobis117 2 роки тому +12

    may i ask on the second to the last problem, why do we need to multiply
    1/x on both sides?

  • @AsifRaf1
    @AsifRaf1 2 роки тому

    Best maths teacher
    Thanks a lot for all the help

  • @Bilalsahmad
    @Bilalsahmad 2 роки тому

    i have my test tommorow and you saved my life, thanks

  • @elis2506
    @elis2506 3 роки тому +3

    quick question, for the problem w (square root of 9x^2+x) - 3x, why couldnt we plug in infinity right away? x^2 is the biggest term, so wouldn't it determine the behavior of the limit and cause it to tend towards infinity?

  • @unknown159
    @unknown159 Рік тому +2

    I am here before every test, this time I am here before my final. Somehow just from watching these videos for like 2 days, I manage to always ace my tests, even though I slacked off the entire semester. LOL

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    @edelwafula378 2 роки тому

    Thank you very much at least you have given me directions and I would like you to give us as more examples as possible for me to be in a good position..

  • @noelkuhomiemaihi5542
    @noelkuhomiemaihi5542 3 місяці тому

    Thank you so much Mr Julius Gonzalex

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    @ish1mwe 11 місяців тому +1

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  • @asoup1972
    @asoup1972 Рік тому

    The answer at 9:20 really helped me out. Thanks a lot!

  • @jonnydobandliamried8094
    @jonnydobandliamried8094 5 років тому +4

    THANK U, some other vid just showed dthe tricks on how to figure it out but didn't explain y, thanks man

  • @5nanometers
    @5nanometers 9 місяців тому +6

    16:14 Why did he multiply the radical in the denominator by 1/x^2, but the rest of the denominator by 1/x? I'm guessing it's because in the end, you're taking the limits individually, but I don't get the rule

    • @mirana6157
      @mirana6157 3 місяці тому

      "Inside a radicle, we need to multiply by 1/x^2" is what he says.
      Because the 1/x is going under the radicle, its supposed to turn into
      1/x^2.
      Hope this helps!

  • @ralphpagangpang9390
    @ralphpagangpang9390 3 роки тому +5

    Kudos to this guy u really save me in my online class frustration

  • @davidkeele5056
    @davidkeele5056 2 роки тому +2

    This was so unbelievably helpful thank you

  • @okekeemmanuelchidubem9807
    @okekeemmanuelchidubem9807 4 роки тому +1

    this tutorial
    is really helpful to me

  • @kurokubushi
    @kurokubushi 7 місяців тому +2

    One short cut rule you didn't seem to cover was when the x value is greater in the numerator (ex: 3x^4-10/6x^2+20) the limit will be +/- infinity since the top is outgrowing the bottom.

  • @sarafeliciano3088
    @sarafeliciano3088 3 роки тому

    Amazing video! Cheers!!

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    @justinfisher5339 3 роки тому +2

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    @ClooverDevs Рік тому +3

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  • @dagatejohnelo.6153
    @dagatejohnelo.6153 2 роки тому

    Thank your so much ,I really struggling to this

  • @doaaahmed9730
    @doaaahmed9730 5 років тому +3

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    Greetings from Egypt 🇪🇬 ✌️

  • @maryamkharal2444
    @maryamkharal2444 2 роки тому

    Thank you for uploading this video! It was such a big help.

  • @michellecampa9850
    @michellecampa9850 2 роки тому +9

    at 16:06 shouldntthe 9 be multiplied by 1/x^2 instead of 1/x because x^2/x is still x???? im confused pls help

    • @plon5284
      @plon5284 Рік тому +10

      ok im a year late but it turns out to be 9 because to be able to multiply √(9x^2) by (1/x) to cancel out the highest exponent, you need to get into the radical. So what he did without explaining was he converted (1/x) into (1/√x^2) bc they're the same, so √(9x^2)/(1/x) = √(9x^2)/√(1/x^2) which makes it √9. -bored college student

  • @Melinda-xx8oe
    @Melinda-xx8oe 5 років тому +3

    The best freaking video on UA-cam

  • @hooligan1602
    @hooligan1602 4 місяці тому

    I haven’t finished the video but I’ve been studying other calc sections for my quiz tomorrow and you just apply the power rule to top and bottom and you get the answer, so all constants = 0, for the constants that have a variable you multiply it by 1 and divide and get the answer. hopefully this helps someone in the future!

  • @Cat-ij2rk
    @Cat-ij2rk 2 роки тому

    Honestly, Thank you so much!

  • @muthoninthiga
    @muthoninthiga Рік тому

    Thanks so much, this is so helpful

  • @priyaangadi1213
    @priyaangadi1213 Рік тому

    awesome math tutorial .

  • @simonpeapo9521
    @simonpeapo9521 3 роки тому +2

    King 👑 of maths,, gifted mind

  • @rowanschelvis4305
    @rowanschelvis4305 5 років тому

    Great video, very helpfull

  • @clinediamond123
    @clinediamond123 3 роки тому

    thank you so much for this!!!!

  • @VeritasEtAequitas
    @VeritasEtAequitas 4 роки тому +1

    Can you.please show these carrying the proper Lim notation through the whole problem? Even with the "work" shown, it skips steps or notation which we need to show on every step.

  • @juevee4341
    @juevee4341 4 роки тому +2

    can i know how to solve the question at @14.35 if the limit is at negative infinity

  • @SuperEH2393
    @SuperEH2393 5 років тому +1

    wish i could write and listen as fast as you man

  • @carterspringer48
    @carterspringer48 9 місяців тому

    Dude I fucking love you man thank you so much for making videos I know you get these kinds of comments on all your video but they help so much I just watched a 10 minute video from a University professor who basically explained nothing then to come here and learn everything in 2 minutes is crazy

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    @kennethjoseph8360 2 роки тому +2

    Am naming my first born after you 🤌🏾🙌🏾

  • @Mr-ep2qi
    @Mr-ep2qi 2 роки тому

    great video!

  • @nawafalmatruk297
    @nawafalmatruk297 5 років тому +1

    thank you so much sir

  • @nickareekadan7313
    @nickareekadan7313 4 роки тому +4

    hey at 12:56 why did the square root of 1/x^6 (9x^6 - x^2) turn into square root (9 + ....) which is addition now? where did the addition sign come from??

  • @user-kq6cs4tb4s
    @user-kq6cs4tb4s 4 місяці тому +3

    Why go to school when we have UA-cam

  • @jayantijally5258
    @jayantijally5258 4 роки тому

    Sir please solve the question.
    Evaluate lim n tends to infinite x to the power n divided by e to the power x

  • @kalpanapatel7172
    @kalpanapatel7172 3 роки тому

    Thank You so much Sir

  • @joshuasangabriel1088
    @joshuasangabriel1088 6 років тому +2

    Thanks bro..

  • @reemhantoli6695
    @reemhantoli6695 4 роки тому

    You are very very good

  • @nanayawksiriboe7426
    @nanayawksiriboe7426 3 роки тому

    what would be a genral equation to write for the definition of vertical and horizontal asymptotes using limits.

  • @micah865
    @micah865 3 роки тому +1

    THANK YOUU VERY MUCH

  • @rabunitube
    @rabunitube Рік тому +1

    Thanks my techer

  • @tevinabeysekera6038
    @tevinabeysekera6038 2 роки тому

    Thank you so much

  • @hazimrassam9389
    @hazimrassam9389 4 роки тому +1

    At 11:35 the answer should be -2 because when x enters inside the square root it becomes x^2 and you have to multiply the limit by a negative sign.

    • @pablogonzalez3705
      @pablogonzalez3705 4 роки тому +2

      What you are saying is true when x -> - infinity, not when x -> infinity

  • @creature._.
    @creature._. 9 місяців тому

    My savior, year to year

  • @elias78910
    @elias78910 Рік тому

    Thank you man

  • @ajibolabalogun9834
    @ajibolabalogun9834 Рік тому +1

    In 11:51 why are we multiplying by 1/x³ instead of 1/x since this question is bottom heavy?
    Does anyone know?

  • @crispychickenwing
    @crispychickenwing 4 роки тому +1

    @ 12:54 why did the sign change from - to +?

  • @SamutaluPatron-my3ks
    @SamutaluPatron-my3ks 10 місяців тому

    Life saver 🤝🏾💯

  • @ahmadsafi9
    @ahmadsafi9 2 роки тому

    Thanks you so much

  • @venunisandhan8624
    @venunisandhan8624 2 роки тому

    I am grateful to you 🥰🥰

  • @avamerrill8851
    @avamerrill8851 3 роки тому

    THANK YOU

  • @wentaeeeee7957
    @wentaeeeee7957 2 роки тому +1

    do u have limit at infinity with table of values??

  • @dannychenski687
    @dannychenski687 4 роки тому

    Thank you

  • @ayaansiddiqui3086
    @ayaansiddiqui3086 3 роки тому

    I don t have any test . But it looks more fun than boring algebra i study in school. That s why i am learning this for fun

  • @mukandaedgar1168
    @mukandaedgar1168 Рік тому +1

    When you multiplied 1/x with √9x^2 +, is it not suppose to be √9x+

  • @arichineekuttyaps.jsathisk124

    Thank you sir🤩

  • @owlhooneru5080
    @owlhooneru5080 4 роки тому

    Can I request a video that shows the behavior of the graph of the limits of infinite and infinity. Please :

  • @sokham4523
    @sokham4523 2 роки тому

    hi, what is the answer if infinity of a limit of n^2/2^n?

  • @harshilpatel7789
    @harshilpatel7789 3 роки тому

    Sir Thank you Very Muchhh