Proof by Mathematical Induction (Precalculus - College Algebra 73)

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  • čas přidán 1. 12. 2020
  • How to prove summation formulas by using Mathematical Induction.
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    Professor Leonard Merch: professor-leonard.myshopify.com

Komentáře • 173

  • @Vanzorz1
    @Vanzorz1 Před 3 lety +243

    Yes! This is Amazing, incredibly useful for CS students, Please do consider a Discrete Mathematics series, it would help us a lot.

    • @PBDNR
      @PBDNR Před 3 lety +16

      yeah discrete was quite the class. a good series on it would be super helpful for lots of students.

    • @amitbhagat120
      @amitbhagat120 Před 3 lety

      Hmmm

    • @donjuan6118
      @donjuan6118 Před 3 lety

      Define "discrete". Because when you take (or anyone takes) Theory of Computation, it's all graph theory application to automata.

    • @marksolvent3259
      @marksolvent3259 Před 3 lety +2

      Yeah that would help a lot. I like how this guy dumbs things tf down

    • @noelpadavan5674
      @noelpadavan5674 Před 3 lety

      Agreed!

  • @danielmadison4451
    @danielmadison4451 Před 27 dny +1

    I fear we have lost you sir. What a devastating loss. I hope you are well and I will always continue to look for your return. A long long time fan.

  • @name8166
    @name8166 Před 3 lety +6

    Hey, please comeback professor. We seriously need you. Lectures on Trigonometry, Complex variables and Partial differential equations are needed. You are our only hope.

  • @gianlucamazzi7878
    @gianlucamazzi7878 Před 3 lety +18

    Just wanted to leave a comment saying how amazing this guy is and he is the only reason I passed Calc 3. I had a teacher who wasn’t very good at teaching but professor Leonard helped me be one of the few that passed with a good grade

  • @autumrose8710
    @autumrose8710 Před 2 lety +10

    This man is truly getting me through my degree. Thank you for all you do.

  • @marywangui4682
    @marywangui4682 Před 3 lety +7

    You cannot imagine what it felt to come across this channel.. As an international student learning in a different language.. You are t God sent.. Just finished my calc 1 and passed.. I really appreciate..

  • @georgesadler7830
    @georgesadler7830 Před 2 lety +5

    Professor Leonard, thank you for a basic Introduction to Mathematical Induction. Learning Mathematical Induction is very helpful in Discrete Mathematics, Advanced Calculus, Number Theory, Linear Algebra and future course in Mathematics. Mathematical Induction helps students to write proofs in Advanced Mathematics. Mathematical Induction helps me to fully understand Advanced Calculus.

  • @kickbackprogrammer2253

    wow... Still coming through for me way after Calculus... You're really the MVP. Thank you for all your videos, please keep going on this discreet mathematics/number theory lessons!

  • @skylerpretto1221
    @skylerpretto1221 Před 3 lety +4

    Best explanation of mathematical induction EVER!

  • @JustMoseyinAround
    @JustMoseyinAround Před 3 lety +5

    Superman never disappoints. Thank you sir.

  • @slickbonz
    @slickbonz Před 3 lety +11

    I love your Calculus series ( I've watched all of it). It is the reason I passed Calc I and II. I can't wait until you are back in a classroom in front of students again. I miss your sense of humor.

    • @vanshikarawat7328
      @vanshikarawat7328 Před 3 lety

      If you have taken notes from these lectures can please share them with me my email id is rawatvanshika26@gmail.com

  • @sonalfernando7042
    @sonalfernando7042 Před 7 měsíci +1

    Subscribed ,thank you for your support.

  • @LostArkLover
    @LostArkLover Před 3 lety

    Happy New and much blessings upon you Sir and family, and Much much appreciation for your efforts

  • @Edgar632172
    @Edgar632172 Před 3 lety +2

    Professor Leonard I am a big fan of the work you are doing! Please consider making a series on content related to proofs. Such material is really scarce to come across on the web even to this day unfortunately. It's a shame too because proofs are the bread and butter of understanding mathematics at a deeper level. :(

  • @tasfiaahsan6262
    @tasfiaahsan6262 Před 3 lety +8

    Its 2 am at night
    And i.am.watching your video and doing maths..your are.just amazing professor... Thank you.so much❤️

  • @tanmoy.mazumder
    @tanmoy.mazumder Před 3 lety

    so good to see you uploading continuously, professor.
    best wishes

  • @josephthecreator
    @josephthecreator Před 2 lety

    Professor Leonard is the TRUTH! Thank you as always.

  • @zander008
    @zander008 Před 4 měsíci +1

    Yet again Professor Leonard makes something so approachable that zybooks made feel so convoluted. Watching these videos always makes me wish I had time/money to go after a math degree with Professor Leonard teaching the classes!

  • @johannesnilsen1904
    @johannesnilsen1904 Před 27 dny

    THIS IS EXACTLY WHAT I NEEDED. GREAT EXPLANATION :)

  • @mohamedhesham6008
    @mohamedhesham6008 Před 2 lety

    You are just out of this world thank you so much for this great video

  • @thenkaliway85
    @thenkaliway85 Před 3 lety +3

    Wooow I've been looking for Mathematical Induction... Please do lots and lots of videos on it

  • @marianasapori4776
    @marianasapori4776 Před 2 měsíci

    the way you set everything up made it click in my brain.. thanks so much

  • @blockrock44
    @blockrock44 Před 3 lety

    Thanks so much! I have an exam in Discrete Mathematics to take today, and I know this will be very important for it! Really glad you had a video on it, especially from just a few days ago!!
    Hope you are well as you can be!

  • @qbtc
    @qbtc Před 7 měsíci

    Crystal clear lecture. You are a gift to the math community.

  • @dbum896
    @dbum896 Před rokem

    Super concise and optimally explained, thank you!

  • @kylemunsami6039
    @kylemunsami6039 Před 3 lety +2

    Good day Professor, It sometimes goes unnoticed when amazing people do amazing things. While this pandemic has caused all our lives to change, your videos became a source of inspiration to us all students. Not many can be as detailed in content and explain with such enthusiasm. Thank you for being the essential worker we needed by delivering excellence on absolutely every video uploaded. May your 2021 be im'PECC'able("see what i did there-HA HA HA"-Preofessor Leonard).

  • @Mark-vl3zm
    @Mark-vl3zm Před 3 lety +3

    Hey Professor!! As of writing this comment I have taken my final and passed Pre-Calculus!! I will be taking Calculus 1 for Winter Semester 2021! Thank you so much for these videos they truly did help alot especially with Distance Learning being a thing. I'll see you in your Calc 1 Playlist. Thanks again!!

  • @reginapulane838
    @reginapulane838 Před 3 lety +3

    Thank you Prof.....you are a blessing to students ❤❤❤❤❤❤❤❤💃💃💃💃💃💃💃💃💃I thank you a lot Prof, I managed to get my Bachelor of Education degree via your videos

  • @charbilrom3153
    @charbilrom3153 Před 3 lety +2

    I can't said anything. I will meet this guy in person . I downloaded his videos from Cal 1-3 and statistics. I will watch this video for life. Imagine studying in college without knowing the language of lectures(arabic). All I have to do is watching P. Leonard videos and come for quiz or exams laughing at my colleague. 1 million subscribers is not enough to give. I don't know how to thank you.🤝🙏

  • @parsarahimnia5376
    @parsarahimnia5376 Před 8 měsíci

    professor Leonard, you are an amazing man

  • @a7xfreak55
    @a7xfreak55 Před 2 lety

    Saving my life once again. Using induction in my Bridge to advanced math class and linear algebra class. After this video I'm golden.

  • @alexEMP1
    @alexEMP1 Před rokem

    Best explanation I’ve found from dozens of other videos

  • @ecmrn
    @ecmrn Před 4 měsíci

    This man gives the best explanations on CZcams

  • @user-ix7nx7pz9m
    @user-ix7nx7pz9m Před 9 měsíci

    Well understood with good explanation

  • @kwabenatorson6248
    @kwabenatorson6248 Před 2 lety

    U've made me understand the concept in fullest

  • @apeiros7999
    @apeiros7999 Před 3 lety

    You give great lectures! I hope to one day make as good videos as yours. You are a great inspiration to young people such as myself.

  • @sunshineberry9829
    @sunshineberry9829 Před 10 měsíci

    I just wanted to say thank you so much! you'er angel sent from Haven... I've never understood math faster than this.

  • @hamzasehavdic
    @hamzasehavdic Před rokem

    Goodness Leonard, this felt like a watershed moment for me
    (and the previous Series/Sequence and Asymptote videos)
    I feel like I have a tangible grip harnessing infinity
    God bless you

  • @ojingaj30
    @ojingaj30 Před 3 lety +10

    Professor L,
    I really hope you will go over Trigonometry after College Algebra.
    Thanks for all your hard work!!

  • @dutonic
    @dutonic Před rokem

    Awesome and clear lecture

  • @VictorMilanov
    @VictorMilanov Před 2 lety

    best explanation i have found on this. thank you

  • @maxd3589
    @maxd3589 Před 3 lety +1

    Trigonometry with you, prof Leonard, would be such a blessing. Sadly I must proceed and finish it alone. Guess I'll have to go back to it when you do it!

  • @korneliusadam
    @korneliusadam Před 3 lety +1

    lectures about linear algebra would be great! many thanks for these lectures, appreciate much what you are doing and for free. everything is explained in a great manner. if the donation is possible I would be glad to support as much as I can. I am sure there are many who would support such a great job. there are many lectures and lecturers but this is far above them.

  • @Gamechanger-Hub
    @Gamechanger-Hub Před 4 měsíci

    Your videos are having good effect on my colleagues and I, We thank you so much 👏. We consider if we can have a playlist on Abstract Algebra with subtitles: Mapping, Binary Operation, Relations, Mathematical Induction, Divisors, Irrational Numbers, Rational Numbers, Complex Numbers, Congruence Modulo N, Groups, Rings and Fields.🙏

  • @gauravbains8426
    @gauravbains8426 Před 7 měsíci

    Thank you bro!

  • @rmarani3530
    @rmarani3530 Před 3 lety +2

    Thank you so much sir

  • @joaquinbustos3069
    @joaquinbustos3069 Před rokem

    youre the best math professor ever

  • @Polyrthyawhut
    @Polyrthyawhut Před 3 lety +1

    One of the best.

  • @cardinalblues7121
    @cardinalblues7121 Před 3 lety

    Thank you for the amazing video, it helps me a lot ,Mr Kent ,oh...Professor Leonard :D

  • @rafaelkacaribu2081
    @rafaelkacaribu2081 Před měsícem

    Thank you so much Proffesor Leonard, finally now I understand the basic concept of this mathematical induction. I will retake exam discrete math and hope i can answer the questions. Thank you sir

  • @lunganispider
    @lunganispider Před rokem

    thank you so very much ❤

  • @mohammedalsulaiman5903
    @mohammedalsulaiman5903 Před 3 lety +3

    I love your lecture. I’m from Saudi. I studied statistics 101 so it was wonderful time I spent during watching your lectures that time.

  • @thomasplatt7329
    @thomasplatt7329 Před 7 měsíci

    its unbelievable how quickly my stress dissipates when I see Prof. Leonard has a video covering what I'm stuck on.

  • @scar6073
    @scar6073 Před 3 lety

    Thank you so much! ♥️

  • @nerdymath89
    @nerdymath89 Před 3 lety

    Sir you're the BEST!

  • @gainsborough25
    @gainsborough25 Před 2 lety

    Love your videos, and have used them to help prepare me for teaching my own calculus class!
    I do want to mention that you want to be careful about assuming what you are trying to prove. For example, at 19:25 when you start setting 1+5+9+... + (4k-3) + [4(k+1)-3] equal to what you want it to be.
    Instead, best practice would be simply manipulating the first part of your equality until you get it to the point that it looks like what you want to prove. For me, I did it like the following:
    1+5+9+... + (4k-3) + [4(k+1)-3]
    = 2k^2 - k + 4(k+1) - 3
    = 2k^2 - k + 4k + 4 - 3
    = 2k^2 +4k + 2 - k + 2 - 3 (splitting up the +4 here into two instances of +2)
    = (2k^2 +4k + 2) - k - 1 (association property and also simplified 2 - 3 to be -1)
    = 2(k^2 + 2k +1) - k - 1 (factor out the 2 in the grouped terms)
    = 2(k+1)^2 - k - 1 (factored the grouped polynomial)
    = 2(k+1)^2 - (k+1) (factored out a negative in the non-grouped terms)
    and at this point we can conclude that
    1+5+9+... + (4k-3) + [4(k+1)-3] = 2(k+1)^2 - (k+1) by the transitive property, and have proved the theorem by induction.
    thanks again for all your videos, prof!

  • @cobycole23
    @cobycole23 Před 2 lety

    Thank you

  • @UnathiGX
    @UnathiGX Před 3 lety

    This makes me happy!

  • @samueldarenskiy6893
    @samueldarenskiy6893 Před rokem

    I would start worshipping this dude if made a linear algebra and discrete math playlist

  • @nigeladams8321
    @nigeladams8321 Před 3 lety +1

    this helped a ton

  • @iamkeeper_
    @iamkeeper_ Před 8 měsíci

    You are the best!!!! Ty

  • @squpsqup2708
    @squpsqup2708 Před 3 lety

    All support for that professor

  • @camquilici5422
    @camquilici5422 Před 3 lety +47

    Professor, can you please put a Linear Algebra series on your todo list?

    • @adamharoon6021
      @adamharoon6021 Před 3 lety

      this would be something I would watch

    • @Peter_1986
      @Peter_1986 Před 3 lety +7

      He has already confirmed in his video "Professor Leonard's Important Announcement 2019" that he will make Linear Algebra videos in the future.

    • @adamharoon6021
      @adamharoon6021 Před 3 lety

      @@Peter_1986 oh sweet

    • @user-ez4ol2ri4h
      @user-ez4ol2ri4h Před 3 lety

      @@Peter_1986 amazing

    • @name8166
      @name8166 Před 3 lety

      @@adamharoon6021 Try James Hamblin for linear algebra

  • @andreaskoutsogiannis5795
    @andreaskoutsogiannis5795 Před 3 lety +1

    Love you!

  • @tambuwalmathsclass
    @tambuwalmathsclass Před 3 lety

    So great

  • @mattrhoades9487
    @mattrhoades9487 Před 3 lety +1

    Another way to explain it would be subtract the series of n=k terms from the series of n=k+1 terms and the only thing standing is the k+1th term on the left hand side and the difference between the right hand side terms...simplify the right hand side and show the right hand side (differences) equals the k+1th term.

  • @TechnicalDoe
    @TechnicalDoe Před rokem

    Outstanding sir 😍😍😍

  • @IEHD01
    @IEHD01 Před 11 měsíci

    Wow you explain this so well compared to my teacher. Thank you

  • @user-fh2rw9zh8g
    @user-fh2rw9zh8g Před 9 měsíci

    Thanks

  • @renefagermo
    @renefagermo Před 2 lety

    Thanks, L!

  • @cricketlover1105
    @cricketlover1105 Před rokem +1

    This is amazing vedio

  • @inamustaf3435
    @inamustaf3435 Před 2 lety

    Wow absolutly prof😯

  • @saltedavocado8006
    @saltedavocado8006 Před 2 lety

    YOU TEACH BETTER THAN MY PROFESSOR!!!!!

  • @williammendez5209
    @williammendez5209 Před 3 lety +1

    I really hope you'll someday do a series on tensor calculus and differential geometry.

    • @Czmlol
      @Czmlol Před 3 lety

      I doubt that it's his domain.

    • @dpmike32819
      @dpmike32819 Před 2 lety

      @@Czmlol I bet it is!,,

  • @stevewest6133
    @stevewest6133 Před rokem

    Great idea, giving a subsequent example after the base case. It drives home the point that the SUM OF the left side at the nth term = formula on the right side with n plugged in.
    For example at n=3, the correct workup is 1+3+5 = 3^2, its NOT 2(3)-1 = 3^2. That's obvious. But at n=1, students might not get the distinction since 2(1)-1 does equal 1^2..... wrong process leads them to a true statement and confusion.

  • @qwqwtry7027
    @qwqwtry7027 Před 3 lety +5

    Holy hellllllll!!!!!!!! He finalllyyy did!!!!!!!

    • @reginapulane838
      @reginapulane838 Před 3 lety

      Yes 💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃💃

    • @mellima4226
      @mellima4226 Před 3 lety

      Hahahh love your reaction.

  • @Peter_1986
    @Peter_1986 Před 2 lety

    5:33
    "4 does equal 4 - that is really kinda cool!"
    Haha!

  • @porixify
    @porixify Před 3 lety +1

    Oh please, get to Trig soon!

  • @kemalware4912
    @kemalware4912 Před rokem

    KING

  • @janoycresva276
    @janoycresva276 Před 3 lety +4

    I wonder when he'll finish his Differential Equations series and start his Linear Algebra vids 🧐

  • @riwasabri6483
    @riwasabri6483 Před 3 lety

    Hi !! Love your videos. Could you please to a Linear Algebra series? Thanks !!

  • @ayushishrivastava150
    @ayushishrivastava150 Před 3 lety

    Please start a complete course of modern algebra.

  • @barryhughes9764
    @barryhughes9764 Před 3 lety

    Another great lecture Professor , thank you. As a patreon may I ask if you have, in your playlist anywhere, an explanation for the 'general binomial expansion?' Regards.

  • @WforWrath
    @WforWrath Před 3 lety

    you are a saint

  • @alamgirkhan330
    @alamgirkhan330 Před 3 lety +1

    And very helpfull

  • @firstdbzmaker
    @firstdbzmaker Před 3 lety

    Please do a course on discrete math!

  • @The_Angry_BeEconomist
    @The_Angry_BeEconomist Před 2 lety

    lol @ "I like to treat my assumptions as fact" said every economist ever 3:10

  • @mostafaghanem3984
    @mostafaghanem3984 Před 3 měsíci

    Ur the goat

  • @hamzahwareh9463
    @hamzahwareh9463 Před rokem

    This guy saved my ass times on end!!

  • @adhilmuhammed9402
    @adhilmuhammed9402 Před 3 lety

    I love learning math from superman ❤️

  • @rupendrakushwah
    @rupendrakushwah Před 3 lety

    Thnx u professor u r very helpful for me I'm from India ❤️❤️❤️❤️❤️ love from India u help me in my lyff ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️ a great thanks u dear I pray to god that God will help u ❤️❤️❤️❤️❤️❤️

  • @brodysnook1231
    @brodysnook1231 Před 3 lety +1

    Dang, didn't know they taught this in precalc at some places.

  • @rufruff6645
    @rufruff6645 Před 8 měsíci

    يارب تسلم

  • @jos2294
    @jos2294 Před 3 lety

    When are you covering Laplace transform in differential equations?

  • @alamgirkhan330
    @alamgirkhan330 Před 3 lety +3

    Professor after pre calculus i think you do algebra or partial differential equation or real analysis

  • @beshermiri1239
    @beshermiri1239 Před 3 lety

    Are you gonna be posting any lectures about Advanced calculus (Laplace trans. & fourier trans.) please?

  • @adamnoble1689
    @adamnoble1689 Před 3 lety

    Has Prof. Leonard lost weight? Best wishes Prof. Leonard!

  • @khiannaduke5874
    @khiannaduke5874 Před 3 lety

    Good Afternoon Professor
    Can you please assist me with these questions
    Question 1
    An education official is interested in the percentage of the adult population over 20 years, in his city, who has read at least one book during the last year. How can he investigate this question using descriptive statistics tools?
    Question 2
    A social researcher is interested in the number of children in the households of City A that receive welfare. He does not have funding for a census nor access to official city records. How can the researcher accomplish his task using descriptive statistics tools?
    Question 3
    In an organization, most of the employees earn at the lower end of the salary scale.State a chart you would use to illustrate the salary data. Describe this salary chart using the appropriate statistical terminology. If Maya, a potential employee, is seeking general information about the company salary scale, what statistical information would you give her and why?
    Question 4
    A quality engineer is curious about the thickness of the paint on the Model A cars produced by her company. Explain how she can obtain a reliable measure of the thickness of the paint, stating clearly the characteristics of the variable she should use.
    Question 5
    Devise a research question. Use this question to explain what is (a) representative sample (b) random sample (c) variable (d) measurement/data type

  • @andreaa284
    @andreaa284 Před 3 lety

    Are you going to be doing videos on systems of linear equations augmented matrices; Gauss-Jordan elimination? I have come to the end of your videos here and now I'm lost :(

    • @Peter_1986
      @Peter_1986 Před 3 lety +1

      He will make Linear Algebra videos in the future - he confirmed this in the video "Professor Leonard's Important Announcement 2019".
      In the meantime, you could always use the book "Linear Algebra And Its Applications" by David Lay - that book is pretty cool, and it is very easy to use.

  • @adrianloh6919
    @adrianloh6919 Před 3 lety

    Come on, last 2 videos, Binomial Theorem and Systems of equations ...❤️