Finding Critical Numbers

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  • Опубликовано: 28 окт 2024

Комментарии • 156

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  Год назад +12

    Derivative Applications - Formula Sheet: bit.ly/4eV6r1b
    Final Exams and Video Playlists: www.video-tutor.net/
    Next Video: ruclips.net/video/WCq3sRzsJfs/видео.html

  • @abdoulazizdabo9064
    @abdoulazizdabo9064 3 года назад +175

    He is dominating RUclips right now. I think what make him great is that he is not trying to show that he well master the material, he just being a genuine teacher, really wants his students to understand.

    • @tis_i_sana
      @tis_i_sana 2 года назад +4

      This is very true!

  • @ndinomaanoimmanuel3065
    @ndinomaanoimmanuel3065 5 лет назад +154

    may god bless you....you are making my university life so easy.....

  • @ajlewandowski3060
    @ajlewandowski3060 4 года назад +454

    You are the only thing keeping me from failing my calc class

    • @JuanLopez-nx5dy
      @JuanLopez-nx5dy 3 года назад +13

      do you know the soccer player, Robert Lewandoski?

    • @ajlewandowski3060
      @ajlewandowski3060 3 года назад +1

      @@JuanLopez-nx5dy Unfortunately, no

    • @mrw5258
      @mrw5258 3 года назад +10

      @@JuanLopez-nx5dy lmaoo

    • @voodooblue6162
      @voodooblue6162 3 года назад +2

      Juan López Hahahahaha. You are so funny, bro!

    • @mrw5258
      @mrw5258 3 года назад +5

      @@voodooblue6162 bro do you know candice

  • @nicholasn.5575
    @nicholasn.5575 5 лет назад +52

    Hey man, thanks for your help. I love how descriptive you are and how you share multiple resources if something is not understood. You're a great teacher.

  • @thelonelytuba1972
    @thelonelytuba1972 3 года назад +12

    I've taken calc 1 twice now, I did it in high school and now in college, both times I've used this channel to help study for the tests

  • @zaidghaben4943
    @zaidghaben4943 3 года назад +50

    Ive made it to Calc 3 watching your videos, thank you so much. This is my last math class.

  • @leandrosatyawirationanda8166
    @leandrosatyawirationanda8166 Год назад +5

    Thank you so much for this video!! You helped me completing one of my homework questions and better understand how to find a critical number of a function.

  • @adamjuckniewitz727
    @adamjuckniewitz727 3 года назад +9

    God bless you, bro. You've been teaching what I don't learn in class for two years

  • @paulzupan3732
    @paulzupan3732 Год назад +7

    Another interesting way to solve the absolute value problem is to realize that |x| = sqrt(x^2), and finding the derivative that way. Derivative of |x| would be |x|/x, then just use the chain rule. I thought that was an interesting alternate solution.

  • @CityStreetViews
    @CityStreetViews 6 лет назад +10

    officially my best youtube teacher

  • @anselally4408
    @anselally4408 5 лет назад +57

    legit 3 minutes of OCT> University professor.

  • @georgesadler7830
    @georgesadler7830 Год назад

    Professor Organic Chemistry Tutor, thank you for an exceptional video/lecture on Finding Critical Numbers in Calculus One. Finding Critical Numbers is important in all levels of Advanced Mathematics. This is an error free video/lecture on RUclips TV with the Organic Chemistry Tutor.

  • @abdoulazizdabo9064
    @abdoulazizdabo9064 3 года назад +4

    You may be somewhere in LA but know that your students are all over the place and they appreciate your efforts. Thank you 🙏🏽

  • @kevinrichard6878
    @kevinrichard6878 5 дней назад

    Have test tomorrow, video was helpful. Thank you.

  • @ello7720
    @ello7720 7 месяцев назад +1

    I got a 100 on my calc exam thanks to you 🙏thank you for these videos.

    • @Dylan_J_Johnson
      @Dylan_J_Johnson 7 месяцев назад +1

      All my calc exams have only been 50 minutes and had over 30 problems. No one is passing and the average grade is a 33. College is great.

  • @Islamicreminder2006
    @Islamicreminder2006 Год назад +2

    Such an amazing tutor👑

  • @danielcezar4599
    @danielcezar4599 5 лет назад +2

    your humor is just lovely

  • @TheluvvlyLyss
    @TheluvvlyLyss 3 года назад +3

    You be saving my life I swear

  • @cora6940
    @cora6940 Год назад +1

    his videos will never fail me

  • @JohnSmith-bs5it
    @JohnSmith-bs5it 5 лет назад +30

    2:04 "set the numerator equal to x" - don't you mean equal to 0?

    • @dareal2669
      @dareal2669 4 года назад +2

      He did to zeeo that's how he got -4

  • @bitm4d
    @bitm4d 2 года назад +1

    I'm at home sick and this is really helping me keep up in class.

  • @andreareyes4868
    @andreareyes4868 3 года назад +7

    in 15:14, why does the 9-x stay? Wouldn't it be just 1 since you are pulling out the (9-x)^1/2

    • @mitchelemonye503
      @mitchelemonye503 Год назад +2

      that was what i was thinking as well, did you figure out why

  • @tk13edm
    @tk13edm 6 лет назад +2

    This video is wayyyyy better than the one on Khan Academy

  • @meskieLoves
    @meskieLoves 5 лет назад +2

    Nice. Very relaxing voice.

  • @franciscojavier5220
    @franciscojavier5220 5 лет назад +2

    Your voice is amazing.
    Thank you for the explanation by the way.

  • @cigxhang486
    @cigxhang486 4 года назад +1

    many examples help A TON

  • @ruthtilahun2881
    @ruthtilahun2881 Год назад +1

    May God bless you and your family

  • @BhagvatSawale-w4u
    @BhagvatSawale-w4u 26 дней назад +1

    Thankyou sir ❤ from india

  • @4afrak
    @4afrak 6 лет назад +10

    So whenever you are finding the critical number of a fraction/ rational function you set both the numerator and denominator equal to zero?

  • @tyjuarez
    @tyjuarez Месяц назад

    thank you for helping me find the crit

  • @lanadelray9169
    @lanadelray9169 4 года назад

    Congrats for 2M subscribers

  • @lizzyberg1082
    @lizzyberg1082 5 лет назад +9

    May Allah bless you for being such a big help for us!!

  • @ojasviagrawal3180
    @ojasviagrawal3180 4 года назад +1

    Thank you so much, I was badly stuck on mod problems

  • @tenx3
    @tenx3 2 года назад +2

    From this point forward, I hope you find close parking spots on the days you're late for something.

  • @buck5655
    @buck5655 3 года назад +1

    I will never stop turning to OCT videos to save me

  • @chesneyadonis805
    @chesneyadonis805 4 года назад +1

    You are doing Gods work!

  • @Nikhil_3239
    @Nikhil_3239 6 лет назад +4

    Good keep doing what you are doing

  • @natsibm2488
    @natsibm2488 3 года назад +1

    i really like you,re all videos keep it up

  • @candacetapia6111
    @candacetapia6111 2 года назад +1

    anyone else trying their hardest not to fall asleep trying to do their homework?

  • @harrybrown1506
    @harrybrown1506 4 года назад +2

    You helped me earn a 100 on my differential calculus exam

  • @ScBoyyx
    @ScBoyyx 5 лет назад +5

    Great, I was stuck on a homework problem and you solved one almost identically!

  • @scottb2587
    @scottb2587 4 года назад +2

    i wish you have covered the trig functions with a coefficient. trying to find zeros of sin(3x) for 0 less than x less than pi..... the anser is pi/6 and 5pi/6 but i dont see how... little help anyone??

  • @karanveerplaha1096
    @karanveerplaha1096 6 лет назад +3

    Man's a legend

  • @yanhesap6728
    @yanhesap6728 4 года назад +1

    17:22 i think root of 9-x^2 had been smaller than 0, the interval would been critical. Am i right? Should we have considered this situation?

  • @mauro11122
    @mauro11122 6 лет назад +3

    plz do more on integration

  • @fernandocruz9882
    @fernandocruz9882 4 года назад +1

    Great explanation JG, as usual.

  • @natashakhalil2426
    @natashakhalil2426 2 года назад

    This man is the only reason why I understand CALC

  • @l3s_o
    @l3s_o Год назад

    طالب سادس فضولي 🫣
    Thx bro for this video ❤️‍🩹

  • @PatriciaDiaz-fq6zn
    @PatriciaDiaz-fq6zn 4 года назад

    once again thank you so much for the help !!!!

  • @annikaj8021
    @annikaj8021 Год назад

    At 2:05, what do you mean by, "if we set the numerator equal to x"? Did you mean "set the numerator equal to -4"? I'm confused

    • @turkeysamr
      @turkeysamr Год назад

      If he solves the top of the equation as in 2x+8=0 and solves for x it'll be -4, at least that's what I'm guessing lol

  • @NkosanaTwala-n1e
    @NkosanaTwala-n1e 2 месяца назад

    Why wen the derivative happens to be a fraction why do we have to equate them to zero separately??

  • @MandaBold
    @MandaBold 11 месяцев назад

    god bless this channel

  • @LadainianComeaux
    @LadainianComeaux 3 месяца назад

    saved me from despair.

  • @mauriciocubillos1786
    @mauriciocubillos1786 Год назад

    A vertical asymptote counts as a critical points?

  • @eymiaquino5808
    @eymiaquino5808 5 лет назад

    You. Are. The...BESTTTT.

  • @claybee12
    @claybee12 5 лет назад +1

    I love your videos, in a cool bro way.

  • @jianmeikamei6974
    @jianmeikamei6974 3 года назад

    Thank you bro

  • @amfaalceesay899
    @amfaalceesay899 2 года назад +2

    May Allah bless the great job yours bro.

    • @issayahya625
      @issayahya625 Год назад

      he is not muslim so respectfully stfu

    • @youtriggered8179
      @youtriggered8179 Год назад

      @@issayahya625 so what? can he not wish him health? muslim or not... tf

  • @afrolly2215
    @afrolly2215 6 лет назад +1

    Life saver! Can you help me out with this equation- find the critical points for 9e^x-e^3x+6

  • @rachelore21
    @rachelore21 4 года назад

    THANK YOU

  • @Michael4Times
    @Michael4Times 11 месяцев назад

    thank you so much.

  • @user-bo7lu2fj4x
    @user-bo7lu2fj4x 3 года назад

    Thank you so much because I loss three mark in 12revision exam .thank u

  • @thebudsofmay
    @thebudsofmay 4 года назад +3

    17:19 Nice

  • @searacha5604
    @searacha5604 3 года назад +1

    at 19:40 isnt 1/2 divided by -1/2 gonna be -1? Why is it (9-X)^1

    • @searacha5604
      @searacha5604 3 года назад

      14:40

    • @SM-qn7sr
      @SM-qn7sr 2 года назад

      You’re dividing the exponents. So it’s like 1/2 - (-1/2)= 1/2 + 1/2= 2/2= 1

  • @addiejpashby9686
    @addiejpashby9686 2 года назад

    Bro came in clutch

  • @furkankaraman6245
    @furkankaraman6245 2 года назад

    Could anyone write trigonometric lesson that this brilliant teacher has shown last 2 minutes

  • @ERCatPat
    @ERCatPat Год назад +1

    Can someone explain at 5:19 why we ignored 6?

    • @printhallo
      @printhallo 14 дней назад +3

      A year later and I shall answer you,
      It is a product thats the equivalent of 0, we know that if a product of something is 0 one of the factors or even multiple is 0, 6 is a factor too, but it's a real number, so the only factors that can be equal to 0 are x-2 and x-3

  • @dyvonmilleriii9079
    @dyvonmilleriii9079 4 года назад

    Sounds like lil Tecca is teaching me math lmao

  • @internalinjectiontrulyhere6182
    @internalinjectiontrulyhere6182 2 года назад

    Only fill the blood applied to you by a time or second you take it in til you rest%accountable

  • @zulyc8641
    @zulyc8641 5 лет назад +2

    Finally I get it! Thank you!

  • @slayerindisguise
    @slayerindisguise 3 года назад +1

    but what happened to the 6 that was factored? 5:15

    • @Ed95366
      @Ed95366 3 года назад +1

      Don't know if this comment will help now but, he discarded the 6 because he wanted to find out what the x's have to be to make the number in the parentheses become zero. If one number in one of the parentheses becomes zero then the whole equation will become zero because zero times what ever number will automatically become zero.

    • @SM-qn7sr
      @SM-qn7sr 2 года назад

      The 6 is a constant and you can divide it by 0 and it disappears

  • @itscoolthough419
    @itscoolthough419 4 года назад

    19:00 why are we dividing -sinx when there’s a sum(or substraction) there?

  • @jeunessekatesuralta3288
    @jeunessekatesuralta3288 3 года назад

    luv it! question though, what's the difference between a critical point and a critical value?

  • @RaffaelloLorenzusSayde
    @RaffaelloLorenzusSayde 2 года назад

    Stop honoring him.. He is just like everyone else a regular human being.

    • @Jawahir-l5u
      @Jawahir-l5u 2 года назад +3

      No he is nota regular human benig . I get high not in the exam because of him . He is not normal he was never normal he is always a great person.
      English is not my first language but I can understand everyo he is explaning easily because he is great .

    • @jermaineferron2722
      @jermaineferron2722 Год назад

      you a hater

  • @DylanGames1000
    @DylanGames1000 3 года назад

    On example 2. If you factor by the quadratic formula, you get x = -2 ; x = -3. Unless I simply just made a simply math error. I believe the critical numbers are -2,-3. Please correct me if I am wrong.

  • @timruelas3279
    @timruelas3279 4 года назад +1

    17:20 .......nice

  • @mashass3171
    @mashass3171 5 лет назад

    Thanks man

  • @ariannawelti4671
    @ariannawelti4671 2 года назад

    i was about to fail my upcoming test until i found this video holy crap thank you!

  • @kelvinasamoah4184
    @kelvinasamoah4184 3 года назад

    Whats the difference of critical point and critical number

  • @tarzan5231
    @tarzan5231 Год назад

    Can someone explain please how setting it to zero equals it to -1 @ 3:20

    • @jawadtariq9634
      @jawadtariq9634 Год назад +3

      You subtract both sides of the above equation i.e 0=x+1 by -1. Thus, 0-1=x+1-1. The 1s cancel each other out leaving behind: -1 = x or x=-1.

  • @sammy5576
    @sammy5576 4 года назад

    is "e" a local maximum

  • @JoebethTechmarkCreatives
    @JoebethTechmarkCreatives 2 года назад

    May you live long

  • @asezashenxane1380
    @asezashenxane1380 6 лет назад +1

    Hello Mr
    Donʼt you have videos on Structural Analysis: Shear Force Diagrams, Bending moment Diagrams, Deflections of beams, Method of sections of finding internal forces and More?
    Please...

    • @georgesadler7830
      @georgesadler7830 Год назад

      Please google lectures by Jeff Hanson for this material.

  • @eduroes
    @eduroes 4 года назад

    Cosin of 120( 2pi/3) is also 0.5 (1/2)

  • @pablolopez-maheras3795
    @pablolopez-maheras3795 2 года назад +1

    Why can't you be my professor

  • @internalinjectiontrulyhere6182
    @internalinjectiontrulyhere6182 2 года назад

    Accountive

  • @naimatullahkhanitistruth5062
    @naimatullahkhanitistruth5062 4 года назад

    Sir why we compare the 1st derivative with 0

    • @dfm01000
      @dfm01000 4 года назад +1

      Because it's the only way to find the critical number/numbers

    • @SM-qn7sr
      @SM-qn7sr 2 года назад +1

      Because when the derivative is 0 there is a horizontal tangent line where the slope is 0.

  • @Want2goflexxx
    @Want2goflexxx 3 года назад

    17:19 nice

  • @juraijbinjamal5313
    @juraijbinjamal5313 6 лет назад +1

    Still not watched full 😭

  • @eunicekokomunyampara6400
    @eunicekokomunyampara6400 2 года назад

    I really have hard time understanding polynomial graph.

  • @badkarma1262
    @badkarma1262 2 года назад

    why cant x = 0 when sinx = 0

  • @XxRespawNxX619
    @XxRespawNxX619 8 месяцев назад

    BLESS

  • @deli5777
    @deli5777 2 года назад

    great vid but please fix your volume. I have to crank mine up, then I get blasted by an ad

  • @HilalBarhor
    @HilalBarhor 5 дней назад

    i think you have a mistake which is that you let the denominator equal to zero and that is wrong, cause it can never equal zero !!

  • @Queen-bu8ct
    @Queen-bu8ct Год назад

    Congratulations Congratulations Congratulations Congratulations Congratulations Congratulations Congratulations Congratulations Congratulations Congratulations Congratulations Congratulations Congratulations Congratulations

  • @thelifeofjesuschrist7525
    @thelifeofjesuschrist7525 3 года назад

    WD

  • @ΠετροςΝικου-β5δ
    @ΠετροςΝικου-β5δ 3 года назад

    Φουερ Μάθ ψήφ μετεω διδ 2

  • @dyvonmilleriii9079
    @dyvonmilleriii9079 4 года назад

    I got pack hit em and do it again

  • @nestlequimno4737
    @nestlequimno4737 3 года назад

    "iniwan na "? haha