Maths HL & Further
For HL and Further Maths discussions
1,179 topics in this forum
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Show that the roots of the equation z^5 - (z-i)^5 =0 are (1/2)(cot (k *pi/5) + i) where k = 1,2,3,4? Please help, thanks
Last reply by sprintdominator, -
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Anyone got any good reading material for 3D parabolas, or just 3D algebra and geometry in general?
Last reply by timtamboy63, -
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I am just asking about geometric sequences in general. We define a geometric sequence as follows, right? a, ar, ar2, ar3, ar4, ar5, ..., arn Is there any limitation on the values of a and r? Or particularly, can a and r be zero? If a and/or r are/is zero, would the sequence be considered a geometric one? Thanks a lot beforehand!
Last reply by fan, -
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Hey guys... Math is definitely a huge syllabus... and i really hope to achieve a 7... any tips, advice... would be great?
Last reply by Daedalus, -
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My class is doing Calculus now and a question in a worksheet from my teacher just made me confused. Find the derivative of x4x with respect to x. I know that the derivative of xn is just nxn-1 But what about xnx?? What do we do to the power?
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Im not too sure if this is both HL and SL btw, but as I do HL, I prefixed it HL. Okay, so currently we are doing radians and all that, and I have a quiz on it tomorrow. I was looking at my table of sine and cosine values for the 16 point circle, and I discovered a pattern that might make things easier for others doing the same thing Oh btw, the sixteen point circle is: The important thing here is to note the radian measures, they actually help in this case So here's the table and explanation I have (I might have missed some points out, let me know if I have any mistakes). http://www.scribd.com/doc/41721338 Enjoy! edit: scribd killed a lot of the formatting, sorry
Last reply by RBST, -
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Hello all, I'd like to know if anyone has information on where to get sample Math HL problems. Old tests, sample questions, anything will do. Specifically, I would like practice with tricky matrix problems. Thanks much!
Last reply by lynyrd, -
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Hey guys, I am going to be doing Maths HL next year. I was wondering whether 3D geometry is needed in the syllabus? (if so, please specify which part). Also for those who has done it or is doing it, what is the most difficult chapter in the syllabus and what does it take to do well (getting a 6 or 7) in HL maths? Thanks sooo much!
Last reply by Applebear0730, -
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It's a Paper 1 question that means no calculator. Here it goes: sin(4x) = sin(x), 0 < x < pi.
Last reply by genepeer, -
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God I suck at math The square matrix X is such that X^3=0. Show that the inverse of the matrix (I-X) is I+X+X^2
Last reply by genepeer, -
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Hi, really need help with this assignment.It is about using 36 coins to make a square or a triangle.In the square, the coins produce square numbers and in the triangle, the coins make triangular numbers. I have a few questions: i) How would i use technology to develop a more mathematical way to of generating square numbers (1,4,9,16..) and also triangular numbers (1,3,6,10...) ii) What patterns would arise with these answers iii) What would be a formula for these results. Really need help people, thank you.
Last reply by suggaplum, -
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Hi everyone, I am studying sampling distribution now which is a small part of the statistics maths option. Our teacher gave it early to us so we can do some work beforehand. I think this is good because I already finished a large part of the syllabus during the summer. I was wondering if anyone here in the forum has done the stat option in maths HL and can give me some problems that they encountered or some questions that I can ask myself to facilitate my learning. Thanks alot guys.
Last reply by TNT, -
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The question goes as follows: In a certain town three newspapers are published. 20% of the population read A, 16% read B, 14% read C, 8& read A and B, 5% read A and C, 4% read B and C, and 2% read all 3. A person is selected at random. Use a venn diagram to help determine the probability that the person reads: a.) none of the papers b.) at least one of the papers c.) exactly one of the papers d.) either A or B e.) A given that the person reads at least 1 paper f.) C, given that the person reads either A or B or both. Now I've tried to solve this problem for about an hour now, cant seem to even get the correct answer for a... answers are: a.) 13/20 b.) 7/20 c.) 11/50…
Last reply by Supib, -
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Somebody Knows about this book for maths HL grades 11&12?: "Understanding pure mathematics" A.J. Sadler & D.W.S. Thorning, Oxford University Press. Thanks a lot. F.
Last reply by FERFER, -
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I'm probably going to course Further Mathematics SL and my teacher asked me to search a book wich have all the topics of the syllabus. Is there anyone that have done it? What book did you use? How difficult is it? Thanks
Last reply by genepeer, -
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Hello I am currently working on my maths IA and the one this year really makes you think sort of out of the box... the problem is based on dimensions and deviding objects in maximum possible parts I managed to find the general formulas and prove them by induction.. the only problem is that although it does work, everything is based on the assumption that my recursive formula for the 3rd dimension works In 2d i cut the circle and get the recursive of previous number of pieces pbtained + the number of the cut... Can someone give me any clues on how to prove the recursive formula for the third dimension? cause you can sort of "see" it, but really no obvious justification..…
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ok bascially this has an equilateral triangle ABC and is drawn and each segment divides the sidin the raio of 1:2 creating another equilateral triangl inside the big triangle.. Has anyone done this portfolio????? Plz give suggestions on how to approach this...
Last reply by Mahuta ♥, -
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Is anyone doing this work??? I have all the graphics and results but just don't know what to write! I mean, what should I put below the graphics? that they show.. and that stuff? all the help is welcome
Last reply by alexliang, -
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Hi guys, my exam is coming really soon, I only have 1 month left For now, im not doing well for maths I ve failed many mock papers and im quite desperate now Is there anyway to improve in like a month Can someone give me advice on how to prepare well for exam
Last reply by Daedalus, -
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Hey guys, i've been working on this problem for an hour, i simply cannot get it!. Help would be greatly appreciated: The roots A and B of the quadratic equation: x^2-kx+(k+1)=0 are such that A^2+B^2 = 13 Find the possible calues of the real number k. I've got these three equations, but i can't seemto get anywhere withthem: A^2+B^2=13 A+B = k (b/c of the addition of roots rule) AB = k+1 (b/c of the multiplication of roots rule) Cheers to anyone that helps
Last reply by Bishup, -
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Hello all, I've recently stumbled upon the website from some very opportune googling. I'm wondering if it would be possible to self-teach myself HL Math, and if so, what books would I need to accomplish that successfully? Cheap suggestions are appreciated when referring to $100+ books.
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Hi, this is my first post @ IBsurvival and I would like to know whether IA topics tend to repeat themselves, like topic A in 2002 then topic A appearing in 2006 again. If they are reused is there some pattern as to how the topics are recycled? Thanks.
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Hey guys, Im having a bit of trouble with my maths. Here's the question: ax^2-6x+a-2 = 0 has one root which is double the other find a and the two roots of the quadratic equation. Ive been trying for the past hour, but I simply can't get it What i've got which is def right so far is: 3z = 6/a 2z^2 = (a-2)/a
Last reply by timtamboy63, -
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So we have threads for Science options already, here comes the maths option thread. So for HL, what option are you all doing? Did you actually get to choose your option? My teacher actually chose our option for us, and we did Stats but it's something I'm so grateful for right now. I have to take a Stats course this semester at uni and it's all the IB Stats stuff so it's mostly revision. I'm listening to a lecture on the normal distribution right now actually and it's all coming back to me.
Last reply by Danika, -
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My second portfolio is desgning a freight elevator. Does someone have the some topic as me? Any suggestions? THX
Last reply by iliee, -
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I just finished my Pre-Ib year and thinking over my future. I think I've made my choices for Ib which are the following; Higher Level Mathematics Chemistry English A1 Swedish A2 Standard Level Biology Philosophy The choice I'm really insecure about is math. I'm not really too sure about my direction in terms of possible career paths. I really just picked subjects that would serve as a proper foundation for future studies and that I like, to some extent. I scored pretty much all 7's this year with the exception of Swedish, History and Math where I got 6's. The math grade is mostly due the fact that I had to teach myself everything over the year (worthless teacher). Anyways…
Last reply by Sandwich, -
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Okay this has previously been posted in '08, but I want the latest update on this matter. Has Further Math been discontinued as of '10 cause I've already signed up for it (sign ups were this year- in april '10) as a subject in my school. So I'm abit lost with this rumor, is it true?
Last reply by lightofthedawn, -
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I find with this option, it's split into 3 parts: 1. graph theory (like Prims, etc) 2. maths counting like Euclidein theory, etc. 3. proofs. Basically, I get very stuck on how to approach the proofs. How do you guys approach it, so you not want proof you need to work with, etc? Also, what do you guys think is the best way to revise for this exam - just question after question? Thank you!
Last reply by Anxious070610, -
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Does anyone have a Haese n Harris Math HL text book of the worked solutions? It is a CD so if anyone has it please can they send me a message or i dont mind paying money also. If no one does, is anyone interested in buying the book and sharing the cost?
Last reply by ibstudentpcm, -
Maths option
by bobo- 1 reply
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Hey guys, which option are you taking for your HL maths? I am taking statistics, I hope it will help me to get a 7 since the first two papers were not that much . how about you?
Last reply by soadquake981, -
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Hey, So Maths Paper 3 is on the 20th and i was wondering if anyone taking the statistics option had any notes or anything that could help me in revision....please???? Much appreciated!
Last reply by zincbrain, -
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Can someone give a an attachment or tell me the grade boundaries?
Last reply by TNT, -
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I am doing maths HL, how much is paper 1, paper 2 and paper 3 (option) worth. How much do each them take up of the final grade. In addition, how much does the IA take up of the final grade.
Last reply by TNT, -
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So the Math Paper 1 is tomorrow, and the only thing I don't know is the whole binomPDF, binomCDF, invnorm, normCDF, normPDF, etc (if there's any more like these...). Does anyone have a good website which teaches you how to solve these?
Last reply by soadquake981, -
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wow..... this investigation that i received today is due in 1 1/2 weeks from now and yet i don't have any clues on how to even start this thing. The investigation is about analyzing the relationship between certain probability distributions and the first part of it asks you to build a model. So its about two players playing Tennis and they play for 10 points- and one person wins about twice as many points as the other person. OK HERE COMES THE PART WHICH I'M COMPLETELY LOST. The instruction tells you to find an appropriate model for the distribution of X, the number of points won by the player who wins twice as many points. So what do you think about this??? what would b…
Last reply by swadha, -
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hey guys i havent studied at all for my maths hl may 2010 till date. can you please suggest me how to revise maths in just 29 days? please help me out.
Last reply by decemberflower, -
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I have no idea where to even begin with this problem. Can someone explain to me where they came up with the equation that the derivatives satisfy? I tried to work out the derivatives on my own to see if they do in fact satisfy the said equation but I get lost where they got the coefficients of the derivatives. Any help is appreciated, thanks. Oh, and this is from an HL exam but I do not know what year...
Last reply by PeacefulChaos, -
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Hello, I have my Math HL exams in 5 weeks (and all other exams too naturally). Anyway, I am practicing right now and I just encountered this problem that I cannot solve. Looking at the answer, I understand the concept but not the actual working. I'd be very thankful if anyone could look at it and possibly offer an intermediate step. I attached problem & answer. So, first you assume the claim works also for n=k. Yes. Then, to prove it for n=k+1, they take the expression for k from the assumption and differentiate it again. I get that, too. But I don't understand the working of the differentiation [from 2nd line of d^(k+1)y/ dx(k+1)on]. Do they use the product rule? Sti…
Last reply by decemberflower, -
Further Maths 1 2 3
by HelenaStage- 46 replies
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Hi, So I noticed there are loads of threads about the common Maths levels but none about Further Maths, so I wanted to make this thread where we can exchange experiences, maybe help each other out if we're stuck and generally just talk about Further Maths... For starters, am I the only non-Asian person to be taking this course? Yes, yes, I know that comment is prejudiced but my observations so far corroborate my impression... Also, at my school (if we wish to take Further Maths), Further Maths is a self-study and not a normal subject like any other with a teacher(which is why I have 7 subjects). I have a guidance teacher who helps me out if I have problems understanding a…
Last reply by tdubthebassist, -
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I'm currently in 11th grade. Last year, when my math teacher was conferencing with us concerning which math we were going to take in IB, she was basically letting us choose between SL and Studies. She said that HL was too challenging for all but 2 of our students (they both skipped a few math courses and had taken some of the advanced classes). I wasn't too thrilled about this. This year, I've learned almost nothing in the SL class and I have over 100% in it. Last week, the teacher asked me if I would be willing to move up to the HL class during my senior year. I of course accepted the offer. However, I have a few questions about this... Will I still be able to get HL cre…
Last reply by adityakumar, -
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I realized a few days ago I need to take HL math in order to have a shot at getting into a course I want to get into. The problem is that I am currently taking SL math (a stupid decision made because of pure laziness). My question is whether switching depends on the school or does the IB program have rules about this? I'm really stressed out about whether my school will let me switch classes. I'm in the middle of IB1 and haven't done any IA's but the HL class has. I'm currently on winter break so won't be able to ask for another week.
Last reply by lexie, -
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For the Investigating Ratios of Areas and Volumes Portfolio, I got the Conjecture for ratios of areas A and B, and I got to 4. But it says How should I set this up the proof?
Last reply by Austin Glau, -
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I am currently getting 96% in a regular non-IB school. Would you recommend me doing math HL, or SL?
Last reply by Gail., -
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I looked through a few sample questions from Math II (SATs) are they seem way beyond the SL level. Is Math II at the same level of difficulty as IB HL Math?
Last reply by abindia, -
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I am practising past paper for my exam in may 2010, I downloaded the MAths HL past paper 2009 paper 2 from the Ib store on Ibo website but I only managed to get the one for Time zone 1 and not time zone 2. That doesn't mean there was only one time zone right? Does anyone know we I can get it or can they send it to me via ***************** ASAP. Any help would be much appreciated!!
Last reply by TNT, -
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Hi I think our IB HL Math class is behind compared to other schools when it comes to the portfolios. Our teacher gave us a practice question to do before she hands us the real ones. It deals with induction quite a bit, which I have a lot of trouble with. I remember the rules of induction are: 1. Assume P(n) is true. 2. Show P(1) is true 3. Assume P(k) is true. 4. Show P(k+1) is true. Usually the most trouble I have is with the step #4. I can never figure out to show the last step as being true. So I was wondering if anyone has any other tips or helpful methods they use in trying to prove something by induction? Thanks.
Last reply by sweetnsimple786, -
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Hey, I was just checking to see if anyone has any good references to use for math HL [mainly books]. Currently, we are using the Oxford book. --Can you please post the link to the website of the book [not just the name] as I will be ordering them online --Our option is going to be in Stat. [if anyone can recommend a book for that] BTW, im in IB1 not in IB2 for those that were thinking of asking. EDIT; we are using the Oxford book not H&H! my bad.
Last reply by Austin Glau, -
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Okay, so I had my maths HL paper 1 mock today- 1st time ever of seeing a past paper (finals in may 2010....110 days until 1st maths exam!) and O literally did not come to an answer on a single question I have to get a 6 to get into uni has anyone got any advice...i understand the topics ok but i just cant answer any questions, and as we missed 3 months of school at the beginning of IB as something happened to the building, we are really behind so have no time to try questions in class with the teacher im sooo scared oo and im new to this site, so how do i know if somebody has replied to this? thanxx
Last reply by TidusBlade, -
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Hey guys First post I am a grade 12 student doing the Series and DiffEq option, and I have to say that despite getting predicted a 7 in maths I don't get it at ALL. We just did a test on sections A B and C, and I scored a 39%. Is there any online tutorial or guide I can use to revise from? I honestly thought I got it but now I realize I don't at all.. Please help someone
Last reply by abindia, -
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Any tips for recognising geometric distributions in disguise? and deducing the p value? thanks!
Last reply by Bee =3,
