OCR A-level Further Mathematics B (MEI) Extra pure - 20th June 2025 [Exam Chat]

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How did your OCR A-level Further Mathematics B (MEI) Extra pure exam go?

OCR A-Level Further Mathematics B (MEI) Extra pure (H642 Y435) - Friday 20th June 2025 [Exam Chat]
Welcome to the exam discussion thread for this exam.
Introduce yourself! Let others know what you're aiming for in your exams, what you are struggling with in your revision or anything else.
Wishing you all the best of luck. :yy:

General Information
Date/Time: Friday 20th June 2025 PM
Length: 1h 15m
Good luck!
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Reply 1

StrawberryDreams

TSR Community Staff

How'd it go everyone? :smile:

Reply 2

themonke

Anyone sat this?

Reply 3

brokenhooper

nobody does this exam board fr

Reply 4

themonke

Original post

by brokenhooper

nobody does this exam board fr

😔😔

Reply 5

themonke

Decent paper some things I had no clue on tho

How were you supposed to find the y coordinates on that 3 marker and the axis of rotation

Reply 6

kicats

I thought it was a pretty good paper, deffo better than some of the past papers which are horrible

Reply 7

kai_m2006

Original post

by themonke

Decent paper some things I had no clue on tho
How were you supposed to find the y coordinates on that 3 marker and the axis of rotation

axis of rotation was the z axis i think, not entirely sure though
had absolutely no idea what i was doing on the y coordinate one

Reply 8

ronanjhnn

Original post

by kai_m2006

axis of rotation was the z axis i think, not entirely sure though
had absolutely no idea what i was doing on the y coordinate one

I think it was y = 4 or -4 but not sure why. I plotted it on my calculator and guessed basically.

Reply 9

kai_m2006

Original post

by ronanjhnn

I think it was y = 4 or -4 but not sure why. I plotted it on my calculator and guessed basically.

ohh nice
i’m just hoping i managed to pick up some method marks on it

Reply 10

ralphiscool

Original post

by kai_m2006

axis of rotation was the z axis i think, not entirely sure though
had absolutely no idea what i was doing on the y coordinate one

same idk for the y coordinate one cos subbing in x led to nothing
no proof question so ok paper

Reply 11

ralphiscool

Did anyone else get -275 and 300 for A and B in recurrence when c = -10

Reply 12

kai_m2006

Original post

by ralphiscool

Did anyone else get -275 and 300 for A and B in recurrence when c = -10

yep i got that!

Reply 13

themonke

Original post

by ralphiscool

Did anyone else get -275 and 300 for A and B in recurrence when c = -10

And k=5 when c=10?

Reply 14

themonke

Original post

by ralphiscool

same idk for the y coordinate one cos subbing in x led to nothing
no proof question so ok paper

$x^{3} - 12xy^{2} + 96y^{2} + 30 = 512$

$y^{2} = \frac{x^{3} - 512}{12x - 96}$

$y^{2} = \frac{(x-8)(x^{2} + 8x +64)}{12(x-8)}$

$y^{2} = \lim_{x \rightarrow 8} \left(\frac{x^{2} + 8x +64}{12}\right)$

$y^{2} = 16 \Rightarrow y=\pm 4$

(edited 9 months ago)

Reply 15

kai_m2006

Original post

by themonke

$x^{3} - 12xy^{2} + 96y^{2} + 30 = 512$
$y^{2} = \frac{x^{3} - 512}{12x - 96}$
$y^{2} = \frac{(x-8)(x^{2} + 8x +64)}{12(x-8)}$
$y^{2} = \lim_{x \rightarrow 8} \frac{x^{2} + 8x +64}{12}$
$y^{2} = 16 \Rightarrow y=\pm 4$

ohh that makes a lot of sense thank you!