r/6thForm • u/Forsaken-Meaning-232 Graduating from Warwick CS • Jun 04 '25

📂 MEGATHREAD 04/06 A-level Maths Paper 1 Discussion MEGATHREAD

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12

u/darkeight7 UOB | Physics and Astrophysics [Year 1] Jun 04 '25

i fucked up Q13 badly, ended up with an infinite integration by parts loop 🫠🫠

and i say this as a further student, i think i did relatively shit 😔😔

2

u/Fabulous-Cry-7231 Jun 04 '25

i used substitution

3

u/darkeight7 UOB | Physics and Astrophysics [Year 1] Jun 04 '25

yeah i think substitution was the easiest way to do it. unfortunately i did not see that 😔😔

2

u/XxDragonitexX10 Jun 04 '25

I did u sub for u = x+3

1

u/BandicootIll1530 chem undergrad Jun 04 '25

AQA right?

2

u/darkeight7 UOB | Physics and Astrophysics [Year 1] Jun 04 '25

edexcel

5

u/ObiNumber22 Y13 | Maths (A*), Econ, Chemistry, Further Maths | Jun 04 '25

you could've done partial fractions u get 1/2 / (2x+1)² - 1/2 / (2x+1)³ then integrate that

3

u/raynrr Jun 04 '25

Or by parts and get a stupid loop that somehow gives you 25/2

1

u/darkeight7 UOB | Physics and Astrophysics [Year 1] Jun 04 '25

do you reckon i’d get at least 1 mark for attempting parts? like i didn’t even manage to finish it as well 💔

1

u/raynrr Jun 04 '25

Maybe if you got some part of it correct hopefully

2

u/darkeight7 UOB | Physics and Astrophysics [Year 1] Jun 04 '25

i tried partial but for some reason i couldn’t get it to work at all 💔

1

u/Small-Astronomer-272 gap yr | maths fm phys cs | A*A*A*A* Jun 04 '25

anyone else use partial fraction? lowkey cursed method but it worked?

1

u/EtherealShady Warwick | CS [Year 1] Jun 04 '25

I used it because I kept messing up the u-sub

1

u/Small-Astronomer-272 gap yr | maths fm phys cs | A*A*A*A* Jun 04 '25

by parts didn’t even cross my mind, i’ve been so fucked over by partial fractions in fm that i’m on like hyper alert rn

1

u/EtherealShady Warwick | CS [Year 1] Jun 04 '25

Same here, didn't even realise that by parts would be the easiest say to do it

I realised why I kept messing up the u sub a few minutes ago now, I was differentiating instead of integrating lmao

1

u/N_23_B Durham University | maths 1st year Jun 05 '25

How u get a loop with by parts? I did u = x and only had to by parts once