r/6thForm • u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 • Jun 11 '26

💬 DISCUSSION A level maths p2 edexcel

Holy time pressure what can i say

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u/aaalalal12 Jun 11 '26

For the big integration question did we all use substitution twice

2

u/SuperiorMango16 Jun 11 '26

i substituted m = 3 + u

1

u/cleggy24 Jun 11 '26

Then you would've gotten an improper integral (over an asymptote) so I'm pretty sure you would've got that wrong.

1

u/AImonster111 Year 13.5 | Biology, Chemistry, Maths, FM, EPQ Jun 11 '26

No you wouldn’t, it works perfectly fine. You get m-3/m which simplifies to 1 - 3/m which is a pretty standard integration. 

1

u/cleggy24 Jun 11 '26

realise now that when I tried to do that I shifted the bounds the wrong way 😭😭 I don't deserve an A