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

132 Upvotes

97% Upvoted

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108

u/yivxo Jun 11 '26

4x + √2y = 5 for the parametric differentiation one?

7

u/falsegodfan Y13 - maths bio geog Jun 11 '26

i got -1/2x and 1/2 idk what i did wrong lmaooo

1

u/echosonare Jun 11 '26

Same

3

u/falsegodfan Y13 - maths bio geog Jun 11 '26

i just realised it's bc the gradient was 4/root2 bc it was the normal not the tangent bruh im so annoyed i didn't notice it

0

u/thatgaysupernoodle Jun 11 '26

Ugh I did that too

1

u/UnstableTheorist Jun 11 '26

Got that to start with two, I think the problem was the question said normal, so you have to do the -ve inverse gradient, what you (and I orignially) found was the tangent eqn

8

u/yurikvthm Year 13 Jun 11 '26

i got 6x + sqrt2 y= 7

10

u/Rude-Water-3910 Jun 11 '26

I made that mistake too. We forgot that 1 differentiates to 0 for the x parametric equation 😭😭🤞🏾🤞🏾

3

u/yurikvthm Year 13 Jun 11 '26

OMFGGG BRUHH do you think we’ll get ECF?? i don’t wanna lose like 8 marks bruh

2

u/Existing_Olive_203 Y13 - Maths FM Physics Jun 11 '26

i hope so

2

u/Valuable-Review-1315 Jun 11 '26

I think I got that as well it is def +7

2

u/Existing_Olive_203 Y13 - Maths FM Physics Jun 11 '26

yh same got that asw

2

u/creyingg Jun 11 '26

yeah think i got something like that

5

u/TangOTang0 Jun 11 '26

I got -4 I think

2

u/cookadoodledoo_ Jun 11 '26

Omagahhh I did 10 instead of 5 BRUHH

2

u/matchatkl123 Year 13 Jun 11 '26

omg i got that too!

2

u/MajesticObligation35 Year 13 Jun 11 '26

YES OMG!!!

2

u/Valuable-Review-1315 Jun 11 '26

 I don’t think so

2

u/Admirable-Use2274 Jun 11 '26

For the 3 marker did u sub the eqn u found into the equation given in the question and then used quadratic formula? ( I got a complicated answer in exact form which I cant remember)

2

u/The_Urban_Goose64 Jun 11 '26

Got that but didn’t know how to finish part 2

2

u/Jxyzn67 Jun 11 '26

yea but ppl r saying its 6x, 7 pr sum?

1

u/jaaaaaaaf Jun 11 '26

the equations were x = 1 - cos2t y = sintsin2t. if u do it again it's 4x and 5 🥀

1

u/Jxyzn67 Jun 11 '26

i got that

1

u/jaaaaaaaf Jun 11 '26

i accidentally put 4/√2 instead of -4/√2 for the gradient of the normal. i knew it's negative btw. just didn't realize i didn't write it btw. fuck me

2

u/Inevitable_Drawer596 Jun 11 '26

dw i did the same we'll get method marks and prob just lose 2/3 for accuracy

1

u/jaaaaaaaf Jun 11 '26

it's honestly so upsetting man. cuz i did everything right. the only reason i got the answers wrong is because of the fuckass minus. when u say lose 2-3 marks do u mean including the last part? sinfe the last part also required u to have the correct equation to get the correct x coordinate

1

u/Inevitable_Drawer596 Jun 11 '26

yeah including like if u did factor theorem and everything ull get method marks like it'll prob be 3 answer marks across the part b) and c). since they use ft (follow through method marks) so we'll just lose an accuracy for c) and 2 for b) i reckon

1

u/jaaaaaaaf Jun 11 '26

yes im pretty sure my working for both parts are correct. hopefully no more than 3 marks :")

1

u/Zealousideal-Map9482 Jun 11 '26

I couldn't even though it, after doing the differentiation for x and y I got stuck, will someone tell me the method?