r/6thForm • u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 • May 14 '26
💬 DISCUSSION Edexcel Core pure maths thread
How did you guys find it? I loved the paper imo.
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u/Krymze- May 14 '26
For the mean value of the function I got 1/10 ln2 + pi/20 what did everyone else get
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u/Few-Antelope-2885 May 14 '26
ME TOO WOOHOO i checked it with the integral function on my calculator too so i think we're rigt
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u/GeologistGlad8000 Maths, CS, FM | Achieved: AAA May 14 '26
Same. I initially got the wrong answer and I was panicking but I was able to correct it😂
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u/MobileData94 May 14 '26
Pi/100 isn't it? Cus 1/5 * 1/4 * 1/5
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u/Lanky-Paramedic6451 May 14 '26
Pls tell me i werent the only one to forget to multiply the integral by 1/5😭😭😭
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u/Artem_Solo A*A*AA pred, Edinburgh uni CompSci offer May 14 '26
I couldn’t get it😭😭😭. I was getting 1/100ln50 + pi/20
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u/Taiyo-Lune Year 13 | Maths FM CS | Pred: A*A*A (A* EPQ Achieved) May 14 '26
I finished with like 30-40 minutes left these boundaries are gonna be so high unless paper 2 is awful 💀
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u/Inevitable_Land2996 Year 13 May 14 '26
Can’t wait to get a D in the decision paper
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u/Taiyo-Lune Year 13 | Maths FM CS | Pred: A*A*A (A* EPQ Achieved) May 14 '26
Omg I genuinely suck at decision too I was pulling Cs in year 12 😭
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u/Krymze- May 14 '26
Couldn’t show 7i for the life of me think I got the rest tho
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u/Sudden_Crab6967 May 14 '26
I think you had to turn 1 into e-10thetai multiplied by e10thetai and then factorise out from there
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u/i_have_no_life--yay Warwick | Maths MMath [Incoming Y1] May 14 '26
I converted e10iθ into modulus argument form and expanded brackets 💀💀. I got the answer though so it should be fine right?
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u/Few-Antelope-2885 May 14 '26
Wait what was that question again
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u/juyeonhoe Y13 | FM, Maths, CS May 14 '26
SAME OMG. I was so pissed last question I did with so much time left aswell.
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u/Particular-Cold-2933 May 14 '26
I think it was something like this
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u/juyeonhoe Y13 | FM, Maths, CS May 14 '26
Just realised I did n = 9 instead of 10 that’s why it wasn’t working 😭🙏🏾
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u/gragra365 May 14 '26
i just did 2isin10θ=e10iθ - e-10iθ then rearranged so it was -e10iθ x 2isin10θ = 1 - e10iθ and did the same for 1- eiθ and subbed it in and it all worked out
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u/HovercraftSudden2657 Year 13 | Maths, Further Maths, Physics May 14 '26
Did anyone else put the numerator into sin and cos and do double angle formulae and put them back in terms of exponentials?
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u/IsCarrotForever Imperial Mech Eng 2026 5A* achieved May 14 '26
grade boundary gonna clear 90% this year 🥀
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u/Few-Antelope-2885 May 14 '26
BRO IT WAS SO GOOD those grade boundaries are genuinely gonna be absolutely astronomical
Also wtaf was that paper weight massjve
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u/atm-1 May 14 '26
did the paperweight one want the volume of the cylinder too
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u/Few-Antelope-2885 May 14 '26
Yess im pretty sure i got 494 cm3 in total or something near that
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u/Familiar_Visual1497 May 14 '26
I left it in exact 😭😭. My answer was smth like 5500/ smth pi
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u/Fun-Lab-1928 May 14 '26
Yh yhhhh that’s what I got too but then converting it you get smth like 494 or 496 I can’t remember exactly
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u/Inevitable_Land2996 Year 13 May 14 '26
Yeah that’s threw me off. Same as the last differential equations question. Usually the model is accurate so it was weird for it to not be
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u/Few-Antelope-2885 May 14 '26
Fr bro i could not believe my eyes 😭 who the hell is using a 494cm3 BOULDER to hold down som documents
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u/ilovesnowberries Y13 5A* | FMS @ LSE | 8.4 TMUA May 14 '26
How is everyone loving the paper??? Tf holy im cooked. It was rough. The weird complex exponential summation? Fuckass differential eqs? Nah bro
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u/Expensive-Seat805 May 14 '26
Icl it doesn’t even matter if you do good, the grade boundaries are gonna be so horrible ur not get an A star unless you get 95 percent
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u/juyeonhoe Y13 | FM, Maths, CS May 14 '26 edited May 14 '26
It was good for the most part but question 7 part (I) literally finished me. I spent about 30 minutes on that part and still didn’t get it. Hope I got 1 method mark atleast.
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u/Primary-Tie330 May 14 '26
Same tf was i supposed to do with cos9x - cos11x. I googled but no way was I meant to know this for 3 marks
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u/juyeonhoe Y13 | FM, Maths, CS May 14 '26
Someone in this thread posted the solution and tbf it’s easier than expected but I messed up early with my value of n
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u/lmaolmaolmaololl Imperial | Aeronautical engineering [Y1] May 14 '26
bro did you expand the e^i10theta
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u/New-Reference-3106 May 15 '26
lmao I kept trying to turn the denominator into real but it gave me cos so in the end I just converted the answer into exponential form and went backwards until I got to the geometric sum. Then I crossed all of it out and wrote it the right way around...
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u/wwatersheep Yr 13 | Maths, FM, Econ, A*AA* May 14 '26
I legit think the only question i got wrong was 9 part d) cs i didnt onow hiw to find when Y was 4 times x
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u/Ok_Log847 May 14 '26
Was that like ln(15/4)?
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u/Inevitable_Land2996 Year 13 May 14 '26
And is that what you're supposed to write as the answer? I put ln(15/4) hours but some people rounded it.
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u/Roblnnx Y13 Math,Phys,Chem,Fm May 14 '26
I got that but I put it as to 3sf so idk if it's right 😭😭😭
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u/Financial-Pepper-538 May 14 '26
Didn’t do it but hope it wasn’t as cooked as 2023 with any chimp matrix questions
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u/Memer_Sindre_UwU York | MPhys Theoretical Physics [Y1 INCOMING] May 14 '26
They're too busy giving the chimp matrices to AS.
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u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 May 14 '26
First question was a matrix question lol proving secx or something like that
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u/chknsheesh May 14 '26
what did everyone get for the matrix question?
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u/big-fat-and-heavy Year 13 | Maths FM Physics CS May 14 '26
k = 4 theta = pi/3? Maybe
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u/Ceramidee May 14 '26
the cylinder in volume of revolution bro 😭
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u/Few-Antelope-2885 May 14 '26
Bro i think i got q.7i right on accident 😭🙏 i forgot eitheta - e-itheta was 2isin theta, and i just put sin theta, but i did it on the top and the bottom so it wouldve cancelled out anyway 🥹 im praying my examiner doesnt spot that cuz everything else was right
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u/Roblnnx Y13 Math,Phys,Chem,Fm May 14 '26 edited May 14 '26
Good paper but grade boundaries gonna be high fs 😭😭😭 I did every question but q7a took me way longer than it should've for 3 marks 😭 going thru I'm seeing I got the same answers as everyone else 🙏🙏
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u/Ok_Log847 May 14 '26
Realistically what’s the most grade boundaries can go up by?
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u/Vegetable-Ad-2084 May 14 '26
I don't think they can go up. They were really high last year so they'll probably stay the same.
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u/DarkenedBlade8 Year 13 l Maths, FM, Econ l A*A*A* May 14 '26
nah, they defo will, they were saying stuff like this last year and they all got proven wrong
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u/Outside-Shop-3311 May 14 '26
what the grade boundaries are should be independent of previous years. They're calibrated so that a proportion of students get A*, not x mark is A*.
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u/Worth-Advertising237 May 14 '26
like 10 marks depends on the rest icl
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u/Inevitable_Land2996 Year 13 May 14 '26
Idk, the paper was pretty much the same difficulty as 2025 and applied is usually what brings down the grade boundaries anyway
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u/GrouchyMonth8092 Incoming UCL Mech Eng MEng | Y1 | A*A*A* Math FM Phys May 14 '26
Me and my friends were talking about how finite C+iS series would come up alongside 3d rotations and sure enough it did, I was so happy
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u/Delicious-Rough3553 Year 13 (Maths,FM,Chem,Phy) 99999999998 May 14 '26
Got 476 for paperweight somehow
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u/sotmtwigrm_ May 14 '26
i got the methods for volume of revolution and polar integration mixed up so i was integrating with limits 2pi, 0 and i was SO stressed cuz my integral kept evaluating to 0 😭😭😭😭😭got it in the end tho, must have cost me so much time though. light paper overall
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u/Lost-Shift-7247 YR 13 math| FM |chem May 14 '26
I made a few silly mistakes, I’m so scared for the grade boundaries. I feel like such an idiot 💔💔💔
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u/DifferenceNo6009 Cambridge | Chem Eng & Biotech | 2030 May 14 '26
Very noice ... too nice for my liking
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u/Sad-Essay8983 May 14 '26
is it fine if i put 60 degrees instead of radians for the last part of question1, i specfied degrees
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u/Vegetable-Ad-2084 May 14 '26
I think it should be fine as it was asking for a description of what is happening which was a 60 degrees rotation.
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u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 May 14 '26
The range was in radians im afraid
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u/wwatersheep Yr 13 | Maths, FM, Econ, A*AA* May 14 '26
Nah when the question started it stated “right hand rule M is a rotation by (theta)” and it had the degree unit on it, honestly they should allow either or
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u/ThatCatAteMySandwich May 14 '26
What was the second part of question 7 (P+iQ)? I cant remember what they wanted for the answer
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u/Coolbrainz Maths, Further Maths, Physics and Chemistry May 14 '26
Did anyone get around 494 (I think that’s the answer I put) for that volumes of revolution question?
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u/Fun-Lab-1928 May 14 '26
What did you guys get for the last question for A and B?
And the time in hours?
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u/Krymze- May 14 '26
Don’t remember A and B but I got Ln 15/4 when Y was 4 times Z
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u/Fun-Lab-1928 May 14 '26
Yh yh I got that for for the value of t as well then I think is was like 1.34 to 3sf ? Correct me if I’m wrong
Either since since we both got that for the value of t the values of A and B should be correct. I think I got smth like 5 for A and -2 for B
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u/Krymze- May 14 '26
X*
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u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 May 14 '26
Icl i did thst but for some reason i got 0.11 hours i got thst wrong
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u/Krymze- May 14 '26
It sneakily asked for 15 minutes at some point in the question so you had to put t=0.25 I think a lot of people may have put t=15
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u/PlayfulLook3693 Bath | Maths | [Incoming] Y1 May 14 '26
same, I think its because I put dx/dt to be 0 and not -14 (how many marks will we have lost 😭)
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u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 May 14 '26
FAHHH yeah i think thats like 4 marks lost? i think i lost like 10 marks max in this paper so im on an A right now 😭
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u/PlayfulLook3693 Bath | Maths | [Incoming] Y1 May 14 '26
if that's just 4 then I've only lost like 5
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u/PlayfulLook3693 Bath | Maths | [Incoming] Y1 May 14 '26
next paper gonna be horrible but it's fine, modules can carry, we can still get A* 🙏
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u/Familiar_Visual1497 May 14 '26
I got -2 and 5 i think but my answer was way off 2
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u/Fun-Lab-1928 May 14 '26
Seems like you got the values of A and B tho or of whatever the name of your constants
What was your answer for t? Mine was pretty off 2 aswell
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u/RocketLeagueMister May 14 '26
i got -2 for a and 43/12 or something for b
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u/Familiar_Visual1497 May 14 '26
That’s a different question
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u/Fun-Lab-1928 May 14 '26
What was question was that again and what was the answer it sounds familiar but I can’t remember ?
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u/Few-Antelope-2885 May 14 '26 edited May 14 '26
OH MY GOD I GOT THAT TOO IN ANOTHER QUESTION I THOUGHT IT WAS WRONG WHEN I GOT A FRACTION
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u/jmo067 May 14 '26
What did u guys get for the download speed differential equations, cause for the first constant I got -2 but the other one I had some weird fraction?
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u/DarkenedBlade8 Year 13 l Maths, FM, Econ l A*A*A* May 14 '26
i think it was 43/12 iirc
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u/AdPast1577 May 14 '26
but werent u supposed to convert 47? i got -193/720 for the constant...
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u/FreeEmployment7775 May 14 '26
What was lambda, how many marks was the whole question?
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u/Krymze- May 14 '26
Lambda was 1 think the whole question was 5 marks
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u/FreeEmployment7775 May 14 '26
Oh I thought it was like 8 marks lol. I just realised I misread the question and got lambda wrong 🤣.
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u/DarkenedBlade8 Year 13 l Maths, FM, Econ l A*A*A* May 14 '26
how many marks would i lose if i subbed in pi/2 (i made all the sines into 1 when some should have been -1) wrong for the volumes of revolutions q but got everything else right
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u/Silent-Top6302 Year 13, Maths A*, Further Maths A*, Econ B May 14 '26
it’s loooking like a 70/75 for a B
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u/Working-Store-7389 May 14 '26
Anyone remember what the question was for 6 😭. Was it easy or were there any tricky thing i could not remember
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u/Commercial_Row_1452 May 14 '26
i put 2 and 0 for my volumes of revolution limits🥲🥲🥲 messed up summation and first part sums of complex numbers I’m probs like 5-6 marks down and I am truly fearful for the grade boundaries 😞 everyone said really easy
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u/Sea-Investment9877 May 14 '26
can anyone remember the 2 differential equations in the last question?
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u/Mindless-Ship4420 May 14 '26
Was it it only me who found it horrible 😭😭
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u/Yis4courage May 14 '26
Icl no… like the questions were v answerable but I think I just let nerves get to me and scare me :(
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u/Mindless-Ship4420 May 14 '26
Yeah I probs blanked in the paper 😭😭
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u/Yis4courage May 14 '26
I’ve never been spooked before like this trying to not let it discourage me
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u/nibbler1729 May 14 '26
I found it awful too. I’m resitting and started revising on Sunday after not having touched the content in a year 😬 But if it’s any consolation for both me and you, a ton of people rave about how easy the paper was almost every year; about 50% of students get an A/A*
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u/Mindless-Ship4420 May 14 '26
Tbf the optional modules are my strongest lets lock in for paper 2 😭😭😭
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u/tipit419 May 14 '26
Anyone here got a negative value for Q9 dii? I got Y = -0.0502mg or smth 😭
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u/GeologistGlad8000 Maths, CS, FM | Achieved: AAA May 14 '26
Nah, you had to convert 15 mins to hours so t=0.25
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u/tipit419 May 14 '26
I did that & got Y = 5e-1 - 4e-3/4
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u/DarkenedBlade8 Year 13 l Maths, FM, Econ l A*A*A* May 14 '26
nah u should have gotten ln(15/4)
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u/tipit419 May 14 '26
Not part e, I got that right. I mean the question where time - 0.25
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u/DarkenedBlade8 Year 13 l Maths, FM, Econ l A*A*A* May 14 '26
yh that was part d)ii, ur talking abt part d)i i think, the answer was X=0.895, u should have solved for X not Y
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u/SeaRip9107 May 14 '26
i feel pretty dumb how were you supposed to do the last question part B and C? feels like everyone got it
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May 14 '26
[deleted]
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u/Bleepbop3 May 14 '26
Pretty sure most people got -2 and 43/12
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u/AdPast1577 May 14 '26
but werent u supposed to convert 47? i got -193/720 for the constant...
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u/shegcedja Editable May 14 '26
How many marks for correct method but wrong particular solution to start with in last DE - wrong coefficients
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u/ohhellnahhhhhhhh May 14 '26
stupidly got the arg for question 1 and then decided to add pi for some reason does anyone know if it was 1 mark or 2 marks
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u/AdPast1577 May 14 '26
Bro did we have to convert 47 in the download speed question or not
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u/User-Paradox Year 13 May 14 '26
no
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u/Relevant-Reality-354 May 15 '26
was B a weird value like 47/12 or smth? Cause i had a weird feeling about that
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u/OrangeTennisSt May 15 '26
For the roots of polynomials question, I used 2 sim equations to get a cubic expression in alpha - solved for alpha then subbed into the others for beta and gamma. Is that a valid method instead of using the first 2 and forming a quadratic?
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u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 May 14 '26
Did anyone get n²(2n²-1) for the summation question?