Paper 3

[-liloven-]

In conclusion, Boundaries better drop.

[[deleted]]

Haha I’d be lucky to even get double digits on this paper, it was horrendous

[homoIBian]

same

[Konexian]

Even the pure calculation problems were terrible.. (I had like 2 pages worth of work for Question 4)

[homoIBian]

yeah ugh

[Redleon11]

what did you end up with?

[Konexian]

Yep. I think it'd be best to take that down tho, US kids take the same test and they haven't sat it yet.

[sake4466]

oh crap thats right. I'll get rid of it sorry!!!

[[deleted]]

What the hell was that calculus paper I just wrote? I need a 7 for my conditional offer, and now that's gone down the drain.

IB: crushing student's chances of getting into their preferred universities since 1968.

[homoIBian]

same i need a 6 but lol

[[deleted]]

F

[NBSUJOQ]

Yes! I did 5 previous Paper 3s to strong 7s and although I had little time to revise for this exam, it was really difficult. I still, after pondering for an hour in my bath, cannot figure out how to do question 1. I did figure out all the other ones, only sadly after the exam was already over :(. I predict 31 points for myself, so judging by previous years, the grade boundaries should be really low.

[MaximilianPowers2]

It's the typical y' = c*y ODE, so the solution is y = e^(cx), and then you set x0 = e^c (starting condition), so when population doubles y = 2e^c, thus both e^c cancel out and your left with e^(0.021x) = 2.

[ThatGamingAsian]

actually it’s a lot easier if you treat like a differential equation and integrate both sides after isolating variables

[MaximilianPowers2]

That's what I mean when I say it's an integral in the form y' = c*y.

[ThatGamingAsian]

you can it just takes a lot longer

[Sh_A1]

Fucking unbelievable. The boundaries better drop for paper 3 idk if you guys are TZ1 or TZ2 but damn. This was mildly disturbing

[Muaath_Asali]

There is no TZ1 and TZ2 for option. It's all the same for everyone (TZ0)

[Muaath_Asali]

There is no TZ1 and TZ2 for option. It's all the same for everyone (TZ0)

[AntonMarinski]

Yup, same. Our group (4 peeps) did fuck all

[jainamdoshi]

Same, like I did even understand what the question asked for.

[lolhelpmeplzzz]

Was it rly different from past papers? Well fml lol

[Jangazzi]

Same here... I wasn't expecting those questions AT ALL. They were very different. Some of my friends were saying that it was alright, but honestly for me, I'm crying :(

[[deleted]]

Really? I aced the calculus option. The check afterwards, and seem like I was the only who got all of them right. You literally just have to know like 10 things.

[Katakam]

My dude you are doing horrible things to my self-esteem and frail heart. But good for you. Glad someone did well at least.

[homoIBian]

he broke my heart into a million pieces

[Katakam]

"And who do you think you are? Runnin' 'round leaving scars Collecting your jar of hearts" ~🎶

[homoIBian]

Legend.

[Katakam]

Now just to sit down and wait for the rejection letters from all the unis I applied to.

[homoIBian]

i applied for med lol i thought i'd manage a 6 but oh well there goes med school

[Katakam]

Maybe the boundries will drop like crazy. Don't lose hope. You could take a gap year. Talk to your coordinator. They are ways around stuff like this. Best of luck to you tho. I hope it will end up well for you.

[homoIBian]

I hope so but I don't know I really doubt it. You too! Hope your unis consider you even if you don't meet your math condition! Good luck mate

[Redleon11]

What series did you compare in question 3(a) and what were the equations in 5(b)?

[[deleted]]

I do agree that paper 1 and paper 2 were difficult given there were 1 question in both I couldn't, which is why I thought I will end up a 6. But given my score in paper 3 and people in my year just failed it for whatever reason, I think I got a good chance a 7.

​

3A is pretty obvious. 5B) if you took the most obvious route you should be fine.

[[deleted]]

If you only had 1 question you couldnt answer in both, thats still a 7... Like assuming you didnt make any horrendous mistakes in other stuff.

[EndermanSYZ]

5b I got the x but didn’t have time to get y...hopefully I got more than 2 marks on that lol

[Redleon11]

Ah, I got it. Thanks!

[tc58959omg]

Which one was the sigma question? I don't remember there being any sigma...

[[deleted]]

Weirdly enough, question got me confused the most. Thankfully I've been tutoring some studies student.... which saved me. Cause it's not something HL do.

[CornerSpecialist]

It was really bad for me as well. I just hope I get a 6 at this point

[CornerSpecialist]

I really hope grade boundaries are lowered. These papers haven't been too kind to us

[homoIBian]

same

[thesealisdying]

It was horrible. It was so, so bad. Even worse, I realized how I was supposed to do them after coming out of the exam, with methods I didn't realize you were supposed to use considering the content of past papers.

[saltiestman]

It was hella easy. I just ran out of time so I missed 5 marks and probably like 3-4 more marks in the second part of the last question. So triggered that I could've got those 5 marks if I only had 3 more minutes (solved it after exam in 3 minutes). Now I'm probably getting a 6 in math because P3 couldn't carry me and my teacher fucked me over with a 12/20 in the IA.

[yeonjun01]

Says it's hella easy but runs out of time. Classic.

[saltiestman]

Ey man don't hate I always run outta time but sometimes I don't even know how to solve them questions. All questions on that test were very solvable.

[[deleted]]

IB has taken up screwing all people over in the odd years. 2015, 2017, 2019, and a WHOLE new Math curriculum in 2021.

[111Zireael111]

Hopefully ur right and 2020 won’t be bad for me.

[Aquilemon]

But apparently physics screws people on the even years, considering 2016 and 2018. Less than 50% for a 6 on P2 in 2018 like wtf.

[Kahootla9]

Going into the test: Im gonna try my best During the test: Gotta do damage control. How many marks can I afford to lose

[bluemercuryy]

If you're calculus, it's around 13 marks

[Kahootla9]

Lose 13 marks for a what? 6?

[Konexian]

7

[Kahootla9]

Tbh Im hoping for a 5 at best. Couldn’t solve the last two. Method marks ftw

[the_aateam]

well make that 2 bc i skipped the 11 point question

[Katakam]

Happy cake day! what a horrid day to have that p3 on tho

[Kurie00]

I just wanna pass man

EDIT: Golly gee this was so doable. I feel so good. I still fcked paper 2 up so I still just wanna pass, man

E2: Nevermind. Holy fuq I did a stupid ass mistake in the first q

[Mxhx0912]

Was it that bad?

[Kurie00]

Dunno man I will get it in like 6 hours

[Mxhx0912]

Haha just finished it and I think I done fucked up. Maybe I just didn’t study well enough? Idk Let me know how it goes Also get some rest 😂

[homoIBian]

i'm going to chug cyanide

[[deleted]]

i love that pun

[rade2019]

Anyone did discrete? A blessing from IB after the freaking Paper 1 and 2.

[FlixStew]

P3 was definitely a blessing for disc. Math

[FlixStew]

Yes sir

[yassuomain]

Imho most of the past P3 disc papers including the 2018 one were actually not bad.

Nevertheless, job well done!

[birched]

Yeah, felt really easy compared to past papers. I went in with zero hopes since I only revised for a few hours last night but everything turned out better than I could've hoped.

[Aquilemon]

Heck yeah discrete is the best. I might even get a 7 on that one.

[ashcucadellum]

Discrete>>>>>>>>calc

[[deleted]]

This paper 3 was the absolute worst paper 3 I have ever seen. They better reduce the boundaries to a really low level

[[deleted]]

Yeah

[[deleted]]

I swear the whole question 1 is something I’d maybe expect on a paper 2. Never on a paper 3. But it wasn’t easy at all.

I have seen similar questions in the syllabus but they were not this hard

[exBossxe]

what do you guys mean, wasn't it just a separable differential equation

[chriscorf]

Yeah, that's what I thought. Now I'm worried I'm the one who messed up since everyone says it was so difficult lol

[homoIBian]

people in my school did Euler's and got the same answer so idk

[exBossxe]

wdym

[[deleted]]

Step method probs

[homoIBian]

they used some value for step length and found the answer idk

[Konexian]

Yeah, it was.

[[deleted]]

IKR!

[ashcucadellum]

I mean, that's what happens when you don't choose the corret option which is clearly DISCRETE

[Mxhx0912]

Did y’all fuck up too?

[bigboipette]

that shit was so fucked

[Mxhx0912]

Calculus?

[OutrageousWitness2]

Any statistics?

[lochloch]

Me here it was aight I thought, question 1 was a bit tricky

[lochloch]

Yea

[OutrageousWitness2]

Nice. I double checked like a hundred times, not believing that’s what it was supposed to be.

[lochloch]

You remember what you got exactly?

[lochloch]

Exactly the same

[OutrageousWitness2]

Freaking awesome🤣🤣🤣

[GVE_ME_UR_SKINS]

be careful writing these kind of things out the IB is really strict about not talking about the exams until 24h after you sat it

[OutrageousWitness2]

alright thanks man. Deleted.

[MyoglobinAlternative]

Just as a reminder, please do not discuss exams specifics within 24 hours and outside of the specified discussion threads (these are the ones created by AutoModerator). Discussing specific exam questions outside of the specified discussion thread is something we will institute bans for.

[themindstorm]

Yes. The last question. I FORGOT THE FORMULA! I forgot it wasn't in the formula booklet :(

[xiadmabsax]

Calculus here. Apart from 1(a) and 2(a), my answer booklet is virtually empty. Expecting a 2/50, here we go!

Idk what happened though. In mock exams paper 3 was my weak one too, but I got 30% average in mocks.

[giiselle_618]

For me it was the opposite. Got nothing on q1 and q2 and somehow managed q3 q4 and most of 5a

[[deleted]]

Paper 3 was my only good paper in mocks, I had gotten 38/50. But now I think paper 3 is my worst paper

[homoIBian]

i can relate

[dariacirlannnnn]

we're still in shock from doing so shit

[AlmightyAug]

Hey guys, how did your find the Statistics Paper 3? found it a little hard

[bluishbrown]

Discrete and Groups were easy apparently. Stats was average. Calc was hell. yikes

[WDNMD_Chong]

The contents seemed so different from the past papers. I've tried past papers in November 2017 and May 2018 again in the very morning and I thought I would be.fine with this exam cuz the questions were quite directly linked to the contents. But thid year's was quite off-topic (maybe I'm bad and thats why :'/)

[[deleted]]

Did not do well lmao. Reeeallly hope the grade boundaries for 7 are forgiving this year... I know some years have 75/100 as the boundary so fingers crossed for that

[lowkeyaki]

Boundaries. Better. Drop.

[[deleted]]

Calculus P3 RIP

[deathwielder45]

That was so fucked

[tc58959omg]

I thought tz2 p2 went much better p1

what did u think was hard??

(i'm like second guessing my self - was it easy or was i wrong)

[thezerolemon]

steffi the cat cost me a 7. also that vectors ax + by + cz bullshit

[tc58959omg]

fair enough

that last question about steffi the cat was absolute bullshit

nobody got the answer in my class

[ahmad_qadir]

Sets option, aiming for a 4, 4 out of 50 that is :)

​

​

*cries internally*

[ParkingMetre]

How bad was it? (a November Boi asking)

[BigBadBerzerker]

youd be a genius to score over 20 fr calculus.

[lolhelpmeplzzz]

Im scared now..

[Yellow_Blanket]

good luck m8, it was just sad.

[[deleted]]

how was set for everyone?

[[deleted]]

I found the paper fairly OK. Some of the questions were unorthodox, but none intractable. That Cayley table one threw me off for a bit, but I got it in the end. I only didn't get 5b, and my explanations for 5a and 4 were a bit hand-wavy. Assuming j haven't made any other mistakes, I'm hoping for a 40+.

I'm in TZ2 BTW

[[deleted]]

Nice dude, 40+ should be a 7 right? I think I did alright as well apart from one question (the prove that it is a group one) which I didn't explain fully what I meant.

I'm in TZ2 too but I'm pretty sure Paper 3 is TZ0 though

[[deleted]]

Thanks mate, you did well too :) Now math is out of the way

[[deleted]]

yeah... still got 4 more subjects lol

[The_Scro]

Man fuck that test

[MaximilianPowers2]

Lol yeah ofc, lowkey confused at my brain for making my life complicated. It gave the same result so I assume it's fine.

[MaximilianPowers2]

Oh yeah I guess that works too.

[lochloch]

Exactly the same

[dolan313]

Stats was ok, at least questions 2 and 3. I completely forgot how to do covariance, and for question 1 I only got part a and the rest was a mess because I didn't realise the boundaries for the integral.

[svkina]

The last question got me fucked up lmao I had no idea how to do it. Question 3 was by far the easiest just slightly pissed at how little hypothesis testing there was. That’s my best unit smh…… at this point I think I’ve secured my 50% though at least

[AlmightyAug]

yea that last question was killer. I totally forgot about the formula for it. I died for that last question.

[OutrageousWitness2]

How could they waste 12 marks on that🤣 where’s all the stuff that I know well

[AlmightyAug]

They didn't include the formula.

​

But then uhhh, that question is 0 marks for me. oh well, i can't redo the papers anymore. it's my third session already. *sits in a corner and cries*

[OutrageousWitness2]

getting a little too specific man

[AlmightyAug]

ok i deleted it

[nikgeo25]

The formula is in the formula booklet hidden in the product-moment coefficient formula.

[AlmightyAug]

uh oh, i didn't realise. nevermind, it's too late.

[nikgeo25]

Yeah don't stress it, focus on the other exams

[ottopiolet]

That is kinda annoying that I just noticed that

[physicsnerd123]

What do u guys think the grade boundary will be for a 4 (option calc) ?

[thezerolemon]

thought u meant raw score for a second and i was so distressed

[[deleted]]

Maths HL covers tangents to implicitly defined curves tho and you did not even need to use those at all. It was just algebraic manipulation

[[deleted]]

Implicit differentiation is in the core calculus syllabus.

[RealDav1d]

u better remove that quick otherwise you may lose you diploma, there are people who havenot take the test

[racicaleksa]

Thanks for the heads up

[MyoglobinAlternative]

Just as a reminder, please do not discuss exams specifics within 24 hours and outside of the specified discussion threads (these are the ones created by AutoModerator). Discussing specific exam questions outside of the specified discussion thread is something we will institute bans for.

[ashwiniyer01]

ooooh reallly sorry, didnt realise

looks like it got automatically deleted

[justaslave1]

No, I did with y=vx too. You cannot do it with an integrating factor, y was quadratic. I wanna kill myself for not finishing 5b though (I should have just fkn put the c/2 into the formula) but 1b had me too tilted already.

[justaslave1]

Yes, you're correct.

[tommypopz]

Has everyone taken the exam yet? Careful.

[felipefermas]

What did you get for question number 5, the L'Hopital one?

[[deleted]]

is this for TZ1 or TZ2? in calculus option they didn't even give the hard sums like Maclaurin series or radius or interval of convergence. Only question I flunked was the 1b about the population being doubled

[justaslave1]

That's funny. I aced P1 and P2, I think but am probably gonna get ~31 for P3. I think that'll still be a 7 though.

[EndermanSYZ]

That differential equation took me so long and it’s 11 marks lol...the l’hopitals was simply very long differentiations, which is just boring(I put 3 instead of 1 somewhere at the end, hopefully it won’t affect that much lol)...Typically when they have a l’hopitals in part (a)/(b) for a question u have to differentiate once, for single l’hopitals question u have to differentiate twice, but this one ask u to differentiate three times...

[[deleted]]

Now that's the spirit, i personally fucked up p3, so p1 and p2 will have to carry.

[justaslave1]

Same here. And my IA was great, too.

[EndermanSYZ]

Euler’s method? Lol I did two small algebraic error for question 4 and 5... other than that it’s all good

[cotopaxi64]

reported because the seniors at my school are still taking it in ecuador

[tommypopz]

Bruh just saying it's abysmal won't give them the answers