How to Find the Domain of Any Function (NancyPi)

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  • เผยแพร่เมื่อ 24 พ.ย. 2024

ความคิดเห็น • 1K

  • @YTRMoney
    @YTRMoney 6 ปีที่แล้ว +2303

    this... this... this is talent... writing backwords??? this girl deserves a noble peace prize

    • @icuppu2
      @icuppu2 6 ปีที่แล้ว +63

      She should have a spelling video, too, and maybe she just might win a Nobel prize.

    • @aidaaqilahmohdzin5542
      @aidaaqilahmohdzin5542 6 ปีที่แล้ว +122

      Hahah. Actually i do think she recorded a selfie video. So,she wrote normally like us hehhe

    • @Miss__Victoria
      @Miss__Victoria 5 ปีที่แล้ว +113

      actually anyone can write backwards with their non dominant hand. take a pencil in both hands and on two different pieces of paper or a whiteboard look straight ahead and try to write the same exact word with both hands. dont think about how, dont look at either hand. just write and look straight forward. its a mind trick I figured out in middle school. your dominant hand will be normal and the non dominant will be a mirror image. the left and right hemispheres of the brain control opposites sides of the body and can mirror each others movements if you just dont interfere by thinking about it. It freaks people out lol.

    • @realdealholyfield9616
      @realdealholyfield9616 5 ปีที่แล้ว +38

      Get some brain

    • @rhysand6629
      @rhysand6629 5 ปีที่แล้ว +8

      @@Miss__Victoria no it wont. if im a lefty, i will write from left to right. and so is my other hand.

  • @jodymarshall1159
    @jodymarshall1159 5 ปีที่แล้ว +861

    44 seconds in, and I already understand better then my teacher or text-book has been able to outline! Thank you so much!

    • @vrockzzzz
      @vrockzzzz 4 ปีที่แล้ว +9

      *Than.

    • @jimmyyang4779
      @jimmyyang4779 3 ปีที่แล้ว +6

      @@vrockzzzz I'm 5 months late but stfu

    • @adg2302
      @adg2302 3 ปีที่แล้ว +3

      than

    • @jadepinto4321
      @jadepinto4321 3 ปีที่แล้ว +6

      bro you're like a mom what do you need this for

    • @beetlejuicejr6133
      @beetlejuicejr6133 3 ปีที่แล้ว +3

      @@jadepinto4321 lol, fr thats what im thinking

  • @ryanwoodard5480
    @ryanwoodard5480 ปีที่แล้ว +237

    Can we all just take a second to appreciate that not only is she doing a great job teaching math, but she is doing it while writing it backwards from her perspective.

    • @tobysmailes2064
      @tobysmailes2064 ปีที่แล้ว +34

      I recon she writes forward (for her) and then flips the video. Bottom line is we only know her backwards.

    • @Etk333
      @Etk333 ปีที่แล้ว +18

      She's not writing backwards dude lol

    • @ryanwoodard5480
      @ryanwoodard5480 ปีที่แล้ว +3

      @@Etk333 Look again. She is writing with her left hand going from HER right to HER left. That is backwards.

    • @Etk333
      @Etk333 ปีที่แล้ว +4

      @@ryanwoodard5480 oh shit?? U might be right dude that's wild

    • @moonman1488
      @moonman1488 ปีที่แล้ว +20

      ​@Ryan Woodard yeah, and that is exactly how it would look if she was writing normally with her right hand and then mirrored the video.

  • @ellarue3753
    @ellarue3753 4 ปีที่แล้ว +844

    Ad: WHAT? STILL SEARCHING TH-cam FOR MATH HELP?
    Me: Yes. I am indeed. Because there are some really good teachers on youtube who deserve respect.

    • @aliashrar4704
      @aliashrar4704 4 ปีที่แล้ว +31

      I got the same ad buddy, like what do you want? to pay for a shitty service for the same lessons lol.

    • @aniyascott3180
      @aniyascott3180 4 ปีที่แล้ว +6

      ikr Mr.McLogan and her helps alot

    • @johnpostma4502
      @johnpostma4502 4 ปีที่แล้ว

      simp

    • @AhmedHassan-gz4tv
      @AhmedHassan-gz4tv 4 ปีที่แล้ว +2

      I got the same as too😂😂

    • @walterlozada1135
      @walterlozada1135 3 ปีที่แล้ว +4

      I always get that ad when I need math help😂

  • @ahmedzahid9079
    @ahmedzahid9079 6 ปีที่แล้ว +213

    I like how she broke up the different types of questions we can get

  • @Motherclucker369
    @Motherclucker369 5 ปีที่แล้ว +103

    If she didn't make her math videos, i would fail my math class. she's a saint.

  • @ericopoku-agyemang31
    @ericopoku-agyemang31 3 ปีที่แล้ว +10

    Nancy, the combination of your speed, demeanor and your knowledge make you a great instructor

  • @denisikonomi2019
    @denisikonomi2019 4 ปีที่แล้ว +91

    This video is literally exactly what I needed.
    It's simple yet detailed which I really appreciate.
    Only thing that's missing is domain of exponentials but other than that it's pretty much perfect

    • @Thestoicrevolution-v5o
      @Thestoicrevolution-v5o 4 ปีที่แล้ว

      If you want to listen to a simple yet detailed relaxing lofi beat, I recommend: th-cam.com/video/aNP9nFBOLuI/w-d-xo.html&ab_channel=ZennyBeats

    • @SaeedAbdullaXO
      @SaeedAbdullaXO 3 ปีที่แล้ว +1

      prod. Akimbo u smooth

  • @kaylagriffin7735
    @kaylagriffin7735 5 ปีที่แล้ว +19

    I’ve had TWO different teachers explain this to me and nothing, I tried khan academy and nothing. But you is a blessing because I understand every. Single. Word.

    • @destinyovbiebo8988
      @destinyovbiebo8988 3 ปีที่แล้ว +1

      That shows that everyone is unique.

    • @giarichards1529
      @giarichards1529 หลายเดือนก่อน +1

      Breh people swear on Khan Academy and I never know what that bro is talking about

  • @antoniapacheco4473
    @antoniapacheco4473 4 ปีที่แล้ว +10

    THANK YOU! My Pre-cal professor was not able to explain this to me as you did! you just helped me pass my exam.

  • @selmamoongo3639
    @selmamoongo3639 4 ปีที่แล้ว +9

    You are the best, as a first year medical student this helped me more than my lecturer, its for 2018 but still useful in 2020. You are keeping me busy during this corona lockdown. May God bless you with more wisdom to share with us more.

  • @ivyttea
    @ivyttea 3 ปีที่แล้ว +64

    Nancy, you are so helpful. You've helped me so many times when nobody else made sense. Please keep making these wonderful videos.

    • @alandaraz2550
      @alandaraz2550 11 หลายเดือนก่อน +1

      Because I can talk to this teacher، do you know him؟

    • @ingeniousmind9777
      @ingeniousmind9777 3 หลายเดือนก่อน +1

      @ivyttea random but ur pfp is gorgeous

  • @ridasaleem4816
    @ridasaleem4816 3 ปีที่แล้ว +9

    I have checked a lot of lectures but unable to understand this topic..But you made it simple🤩 ..Your way of teaching is impressive..
    God bless you😊

  • @jocelynborrell2363
    @jocelynborrell2363 2 หลายเดือนก่อน +2

    NancyPi has the whole package; brains & beauty

  • @cowcatpro5395
    @cowcatpro5395 5 ปีที่แล้ว +116

    I watched kahn academy 5 times and nothing helped this makes so much more sense thanks

    • @CALISUPERSPORT
      @CALISUPERSPORT 4 ปีที่แล้ว +23

      Khan academy is hit or miss sometimes with their guides

  • @ERnurse22
    @ERnurse22 4 ปีที่แล้ว +1

    Can we just have a round of applause for this lady. My savior in calculus.

  • @Zoobie16
    @Zoobie16 5 ปีที่แล้ว +5

    Wow I have never enjoyed math this much. You are so calm

  • @mmmggg2049
    @mmmggg2049 3 ปีที่แล้ว +1

    ... a subject that i have been confused by for weeks cleared up in just 12 minutes... i applaud you ma'am

  • @amandarobinson9382
    @amandarobinson9382 4 ปีที่แล้ว +3

    Her videos were very useful for me and now I can help other people with their algebra

  • @mlkgal
    @mlkgal 4 ปีที่แล้ว +1

    God bless you. You're amazing. Teachers like you deserve more than the world man.

  • @mindlywander6128
    @mindlywander6128 4 ปีที่แล้ว +4

    Honestly, you are really saving my non-mathematical bottom part. Thank you! :D

  • @gamaliellebagorio2059
    @gamaliellebagorio2059 4 ปีที่แล้ว +1

    Ok so finally after browsing through a lot if videos about this I finally understand ut with her explanation. Really a life saver

  • @kerenxy477
    @kerenxy477 3 ปีที่แล้ว +3

    THANKYOU SO MUCH THIS VIDEO LITERALLY HELPED ME SO MUCH I WAS STRUGGLING 😭

  • @zenobiamulero3394
    @zenobiamulero3394 ปีที่แล้ว +1

    That was so slay of you, ate that up and left no crumbs. I actually understand and this helps with finding critical numbers in calc. Thank you!!!

  • @brianv9242
    @brianv9242 4 ปีที่แล้ว +20

    You explained more to me in 12 short minutes than my professor does in hours of lectures. Thank you

    • @yosickboy8709
      @yosickboy8709 ปีที่แล้ว

      this is 11th grade math why would it take hours?

  • @joshuaperling2985
    @joshuaperling2985 2 ปีที่แล้ว +1

    NanciPi is the best mathematics teacher in the universe!

  • @RubiMercuri
    @RubiMercuri 5 ปีที่แล้ว +62

    Using this to review for my precalc 1 exam tomorrow wish me luck

  • @athenaturtles8439
    @athenaturtles8439 3 ปีที่แล้ว +1

    I swear im a senior in high school and this is the first time i understood wtf domain is, thank u!!

  • @ebonypollard7133
    @ebonypollard7133 4 ปีที่แล้ว +13

    Can you do a video on how to solve piecewise functions please? I am so confused on how to do it and love the way you explain how to do math! Your videos are amazing!

    • @patchu4800
      @patchu4800 2 ปีที่แล้ว

      Me right now :

  • @zhilubbae8707
    @zhilubbae8707 3 ปีที่แล้ว

    I've gone through thousands of videos about this and non of them helped me one bit, but this video helped me tons a Million, She's amazing. Congratulations you earned yourself a new subscriber

  • @hasansaleem4983
    @hasansaleem4983 4 ปีที่แล้ว +5

    Thankyou so much mam i dont know how to thank you, i didnt knew this topic and tuesday is my cbse exam , lots of thanks from india

  • @TechGuides247
    @TechGuides247 5 ปีที่แล้ว +2

    You are better than my math lecturer. God bless you. This is my best class room

  • @Zero-yv5vy
    @Zero-yv5vy 2 ปีที่แล้ว +4

    Amazing you made me understand the concept so easily and quickly, thank you so much!!!

  • @sullenstudent48
    @sullenstudent48 3 ปีที่แล้ว

    I could listen to you talk about anything. This is great!

  • @jaydenrose6652
    @jaydenrose6652 6 ปีที่แล้ว +4

    I love how she can do math backwards and write backwards she really deserves a price, also your video helped me out a lot. Keep the good work going. (2k18 september anyone)

    • @aaminali2743
      @aaminali2743 6 ปีที่แล้ว

      Divine Wolf the video is flipped she is actually writing backwards...

    • @solomonlijo
      @solomonlijo 4 หลายเดือนก่อน

      2k24 here!

  • @harivittal9345
    @harivittal9345 3 ปีที่แล้ว +22

    I'm a truck driver and I dunno wth am I doing here

    • @FreePHALASTINE7867
      @FreePHALASTINE7867 3 หลายเดือนก่อน +5

      Bro no limits on gaining knowledge

  • @maameafoafosuhene1514
    @maameafoafosuhene1514 2 ปีที่แล้ว +1

    This lady is the best🥺😫❤️❤️❤️

  • @sabirusa
    @sabirusa 5 ปีที่แล้ว +6

    Thank you so much! This is the most straightforward and helpful video I have found on this topic.

    • @sharan8254
      @sharan8254 3 ปีที่แล้ว +1

      Also she is so cute and hot

  • @robertlee9679
    @robertlee9679 4 ปีที่แล้ว

    best video I've encountered so far on explaining finding domain...thank you

  • @uditsaxena3844
    @uditsaxena3844 4 ปีที่แล้ว +3

    Thank you so much teacher lots of love u made learning super easy pls help others like this with much higher contents in an easy way infact u should charge for a course online u deserve it absolutely brilliant work 💖😍🌷🌷

  • @ornees5946
    @ornees5946 3 หลายเดือนก่อน

    Out of all the videos I watched while stressing over getting into grade 11 this helped so much

  • @normalhuman9781
    @normalhuman9781 3 ปีที่แล้ว +6

    Could you make one that teaches how to figure out the range instead of the domain. Great video!

  • @Its_sabribri
    @Its_sabribri 3 ปีที่แล้ว +2

    She put the time stamps in the descriptions she’s the GOAT

  • @spectator5792
    @spectator5792 6 ปีที่แล้ว +3

    WERE WAITING

  • @aya7456
    @aya7456 ปีที่แล้ว

    YOU ARE A STAR NANCY , YOU ARE SAVING SO MANY PEOPLE !!!!!!!!!!!!!!!!!!!!!!!

  • @gabriellejoshebedabarico9499
    @gabriellejoshebedabarico9499 6 ปีที่แล้ว +188

    Can you make a video of "how to find the range of any function"?

    • @thehardtruth3886
      @thehardtruth3886 5 ปีที่แล้ว +30

      I mean u can inverse the function and then find the domain of that.. That will be the range of f(x) function...

    • @kishoresubramani1309
      @kishoresubramani1309 5 ปีที่แล้ว +4

      @@thehardtruth3886 yes thank you

  • @husenyesuf7433
    @husenyesuf7433 2 ปีที่แล้ว

    My teacher, you deserve award for your talent really

  • @StuStue
    @StuStue 4 ปีที่แล้ว +56

    She taught me how to find a domain not my teacher😂

    • @JLvatron
      @JLvatron 3 ปีที่แล้ว +1

      You were trying to find your teacher? Tee-Hee!

    • @satoshinakamoto7253
      @satoshinakamoto7253 3 ปีที่แล้ว

      yeah she gave the fundamental laws. That's what I was looking for

    • @mikasaackerman4964
      @mikasaackerman4964 3 ปีที่แล้ว

      IM STILL LOST

  • @abigailwint6648
    @abigailwint6648 3 หลายเดือนก่อน

    5 years later @ 12:am, I'm searching for your videos. God bless you

  • @jvaliente9094
    @jvaliente9094 5 ปีที่แล้ว +4

    How to find range please ? huhu... best teacher in youtube

  • @lhazeymeto3372
    @lhazeymeto3372 4 ปีที่แล้ว +2

    Thank you I had so much fun watching your lesson. I have a test tomorrow and I am studying now 😅

  • @roysaadeyemi4125
    @roysaadeyemi4125 6 ปีที่แล้ว +3

    The video is so well explained

  • @emmanueldesmond3707
    @emmanueldesmond3707 ปีที่แล้ว +1

    Great video, You've changed my view on learning entirely and I just know I'll be able to do better with my studies.

    • @tynasyrinx1531
      @tynasyrinx1531 ปีที่แล้ว

      the fact that this video has been uploaded five years ago and we still ended up here, even tho we can already use all of those modern resources like AI for like everything. Nancy be saving my ass fr!!

  • @xshortguy
    @xshortguy 5 ปีที่แล้ว +6

    To find the domain of the function: look at the A in the symbol f : A -> B

  • @gugugal1211
    @gugugal1211 3 ปีที่แล้ว

    THANK YOU. So many male teachers overcomplicate this, you broke it down very simply.

  • @justjacqueline2004
    @justjacqueline2004 6 ปีที่แล้ว +16

    Fantastic Nancy is BAACK!

  • @Akhi-s8b-l1f
    @Akhi-s8b-l1f 10 หลายเดือนก่อน

    I always watch this particular video before any maths exam(i have a bad memory i cannot retain things lol) and it helps me everytime! Tysm for this video

  • @mrlegible4894
    @mrlegible4894 6 ปีที่แล้ว +76

    On the square root only section you have X^2 + 5X + 6. That factors into (X +3)(X + 2). Now you only flip an inequality sign when you divide or multiply by a negative number, which this problem doesn't require. So you end up with: X >= -3 or X >= -2. So I don't understand how you got X

    • @alfredpeter2404
      @alfredpeter2404 6 ปีที่แล้ว +10

      Same here, been trying to figure this out for a while now!

    • @mazharabbasbukhari7390
      @mazharabbasbukhari7390 6 ปีที่แล้ว +1

      i am also confuse at this same point,but i assume as one factor as positive and one as negative.lol

    • @tamachanusko
      @tamachanusko 6 ปีที่แล้ว

      x cant be more than -3. -2.5, -2.6, -2,7 etc will break the >= 0.

    • @feero9680
      @feero9680 6 ปีที่แล้ว +13

      There is nothing wrong with her working. She mentioned, that is a quadratic inequality, which means there is a slightly different method of solving that eqn.
      In quadratic inequality, u find x like normal quadratic. And then with that x, u find the critical region. Remember b^2-2ac ? Thats how she ends up with that
      As she said, check out her other video on that.
      Sry bad english tho

    • @jasonandreas6784
      @jasonandreas6784 6 ปีที่แล้ว

      it go me worried too, u are right

  • @Александар-ж3ж
    @Александар-ж3ж 4 ปีที่แล้ว

    YOU ARE SO HELPFUL THANK YOU
    I missed this content at school due to lockdown, nobody explained it to me but you did, you're a godsend!!!!

    • @Thestoicrevolution-v5o
      @Thestoicrevolution-v5o 4 ปีที่แล้ว

      Good job learning the content you missed. You should listen to this while studying: th-cam.com/video/aNP9nFBOLuI/w-d-xo.html&ab_channel=ZennyBeats good luck getting good grades!

  • @pashamaeh6241
    @pashamaeh6241 5 ปีที่แล้ว +12

    Thanks, like, sincerely. Damn this is so useful. This makes more sense than my class

  • @kapsa_lamona3961
    @kapsa_lamona3961 หลายเดือนก่อน

    I thought I was gonna fail this year because of my accursed maths course. Thank you so much truly! You are a genius and I subscribed !

  • @imowffaq
    @imowffaq 6 ปีที่แล้ว +4

    the times i screamed "I love you" after finishing one of your videos are just creapy 😂😂😂😂

  • @winnihelstone6480
    @winnihelstone6480 2 ปีที่แล้ว

    you're a lifesaver! test coming up on thursday, i have not looked at math in 10 years LOL

  • @maspero23
    @maspero23 6 ปีที่แล้ว +6

    Love u nancy been watching ur vids since 2015

  • @ethanf7719
    @ethanf7719 6 ปีที่แล้ว +1

    perfectly paced video, doesn't take too long to talk about everything and very informative

  • @VivekYadav-ds8oz
    @VivekYadav-ds8oz 4 ปีที่แล้ว +16

    Not gonna lie, I didn't come here for the concept, I already knew that ;)

    • @marek419
      @marek419 3 ปีที่แล้ว

      eek barbadurckle

  • @malmelody
    @malmelody ปีที่แล้ว

    im a middle schooler teaching myself calculus and this helped alot thank youuu!!!!

  • @GoldenGoose69
    @GoldenGoose69 4 ปีที่แล้ว +137

    If this was my teacher I'd probably pay more attention.

  • @defenderofwisdom
    @defenderofwisdom 4 ปีที่แล้ว

    My wife was struggling with several ideas in calculus until we found this video - thanks!

  • @daniellassander
    @daniellassander 6 ปีที่แล้ว +27

    I love this channel, an intelligent and also attractive woman showing me how to do math :)

    • @icuppu2
      @icuppu2 6 ปีที่แล้ว +3

      I have to disagree with you Daniel, she is not attractive, she is mesmerizing. I have no idea what she said after "Hi!", but I watched the video 5 times and still can't remember what she said.

    • @Indiegirl007
      @Indiegirl007 5 ปีที่แล้ว +7

      Ya'll are so thirsty.

    • @shrynk6
      @shrynk6 5 ปีที่แล้ว +4

      Just take the damn lesson

  • @joeshmoe9111
    @joeshmoe9111 4 ปีที่แล้ว +1

    Never have I understood and applied math so quickly. Thank you : )

  • @maggiewalsh3590
    @maggiewalsh3590 6 หลายเดือนก่อน

    I love your videos bc you have a lovely voice and explain things simply. Literally thank you I feel much better about my test tomorrow.

  • @scottwitoff8932
    @scottwitoff8932 3 ปีที่แล้ว +3

    Great video. Can you do one covering the domain of trigonometric functions?

  • @AzizHafiz-h5q
    @AzizHafiz-h5q 8 หลายเดือนก่อน

    wow I cant believe your video helped me even after 5years, keep up the good work

  • @julietporter4307
    @julietporter4307 6 ปีที่แล้ว +3

    My savior

  • @MuhammadNaeem-bg4so
    @MuhammadNaeem-bg4so ปีที่แล้ว

    The great explanation of finding domain all over the internet.... I swear...
    We want "How to find Range for any function" Plzzzzz

  • @eslamsaeed8395
    @eslamsaeed8395 6 ปีที่แล้ว +3

    1x^2+4/√(4-x^2)
    This is function come with my first exam in my faculty

  • @joelsonsabado9206
    @joelsonsabado9206 4 ปีที่แล้ว

    I wouldve been an MIT grad student if i had devilishly, drop dead gorgeous teacher like you

  • @PurposefullyYou
    @PurposefullyYou 5 ปีที่แล้ว +5

    Maths has never been so beautiful 😍😍

  • @arianabautista3810
    @arianabautista3810 4 ปีที่แล้ว

    I just want to say this is the third time I have used your video for an exam Thank you so much this has helped me a lot ❤️

  • @abhishekmukherjee4857
    @abhishekmukherjee4857 6 ปีที่แล้ว +7

    Thanks! Alot

  • @MylisaKay
    @MylisaKay 5 ปีที่แล้ว +1

    Best video I have found on TH-cam on Domain!

  • @lindsaycook7545
    @lindsaycook7545 4 ปีที่แล้ว +12

    You remind me of Violet from the Incredibles.

    • @zackjohnson664
      @zackjohnson664 2 ปีที่แล้ว

      I literally just commented that, nutz

  • @rrxxx3103
    @rrxxx3103 6 ปีที่แล้ว

    OMGGGGG I’ve been trying to understand domain since the beginning of the year thank youuuuuu ❤️

  • @almuhanadahmedsaidalhashmi4696
    @almuhanadahmedsaidalhashmi4696 5 ปีที่แล้ว +7

    Teacher in the example of sqr(x^2 + 5x + 6) you make mistake in writing the domain it must be x greater than or equal to 0 thank you

    • @jesuisravi
      @jesuisravi 5 ปีที่แล้ว

      no. She's right. It can't be equal to zero.

  • @binibiningatheaninavenus9725
    @binibiningatheaninavenus9725 6 ปีที่แล้ว +5

    Very well explained but how about range?

    • @Marjiance26
      @Marjiance26 5 ปีที่แล้ว

      ikr wala akong mahanap na vid nya about range. loved her vid tho

  • @salehaboutaama7370
    @salehaboutaama7370 5 ปีที่แล้ว

    Among all courses and videos of how to get the domain of a function yours is the best and the most clear and accurate one. Only because you justified that functions are divided into 5 types (Polynomial, fractions...etc)
    I really do thank you very much for being clear and precise while explaining math 3>
    keep up the good work Nancy

  • @Albertobelmonte9
    @Albertobelmonte9 6 ปีที่แล้ว +4

    Awesome!

  • @Sl0thba11
    @Sl0thba11 4 ปีที่แล้ว

    I've never seen that binding thing...in South Africa we use lil crocodile mouth things: (these) and then we don't use brackets, we just simply go, for example, -2

  • @MohammadAli-uk4qt
    @MohammadAli-uk4qt 6 ปีที่แล้ว +3

    Thanks ❤️

  • @kshitijmishra255
    @kshitijmishra255 4 ปีที่แล้ว +1

    THIS WAS TOO MUCH HELPFUL FOR ME MA'AM 👏
    LOVE AND RESPECT FROM INDIA🇮🇳

  • @evilum
    @evilum 6 ปีที่แล้ว +8

    nancy is fancy

  • @MasoniteShadow
    @MasoniteShadow 5 ปีที่แล้ว

    THANK YOU SO MUCH. nowhere else in any textbook or internet explained finding the domain as well as you have.

  • @CreateNewHandleHere
    @CreateNewHandleHere 6 ปีที่แล้ว +3

    What if you have a cubed root on the bottom? Like if it's 1/ x³+x

    • @MathEd-k3b
      @MathEd-k3b 5 ปีที่แล้ว

      Set the radicand > 0 and solve. So x(x^2 + 1) > 0, critical value is only 0 since x^2 + 1 is always positive. So x > 0 is domain.

  • @julianrothaanakdensi7269
    @julianrothaanakdensi7269 4 ปีที่แล้ว +1

    Love it. I understand it so clearly now. Tq for making this vid. Hope u r well and God bless u

    • @oasisrocks
      @oasisrocks 4 ปีที่แล้ว

      julia, can you please help me understand why the sign changed at the one for square root only. Why is the answer x less than negative 3. please respond

  • @deahosel7885
    @deahosel7885 5 ปีที่แล้ว +3

    Hi my name is dea, I was wondering how do you find the domain for exponential functions?

    • @iasoe
      @iasoe 4 ปีที่แล้ว

      is it all real numbers?

  • @alamarabegum3753
    @alamarabegum3753 17 วันที่ผ่านมา

    She deserves billion views

  • @spectator5792
    @spectator5792 6 ปีที่แล้ว +9

    CAN YOU PLS HELP ME WITH THE RANGE, I AM HAVING A HARD TIME WITH IT

    • @aaminali2743
      @aaminali2743 6 ปีที่แล้ว +8

      Teach me Range pls my exam is on monday omg that’s your account name😂😂😂😂😂

    • @spectator5792
      @spectator5792 6 ปีที่แล้ว +3

      @@aaminali2743 I hope nancy will notice my request

    • @rocks6617
      @rocks6617 6 ปีที่แล้ว +3

      My exams due tomorrow lol

    • @zacchary2961
      @zacchary2961 6 ปีที่แล้ว +2

      just inverse the function (let function=y method) and find the domain of the inverse, because domain of f(x) inverse= range of f(x) and vice versa.

    • @Niovo
      @Niovo 6 ปีที่แล้ว

      @@zacchary2961 could you maybe link a video or article explaining how to do that?

  • @tylereaton7742
    @tylereaton7742 4 ปีที่แล้ว

    Can't concentrate on the words you say, your eyes pierced my soul.

  • @mugz2434
    @mugz2434 6 ปีที่แล้ว +4

    What should I do if there's a quadratic on both numerator and denominator?

    • @UlisesCastroPenyaloza
      @UlisesCastroPenyaloza 6 ปีที่แล้ว +1

      It is the same first example explained by Nancy. It Doesn't matter the numerator. The restriction is made by denominator because if it's equal to zero, the expression becomes undetermined. I hope to be clear enough.

    • @jefftheninja8293
      @jefftheninja8293 6 ปีที่แล้ว

      How do you find the range of a rational function whose numerator and denominator are in quadratic form? Ulises Castro

    • @UlisesCastroPenyaloza
      @UlisesCastroPenyaloza 6 ปีที่แล้ว

      Hi Jefferson. As I said before the funtion is restricted only by denominator. What is the range in a simple polynomial function?