You are Here: Home >< Maths

Mr M's OCR (not OCR MEI) Further Pure 2 answers June 2012

Announcements Posted on
Last day to win £100 of Amazon vouchers - don't miss out! Take our quick survey to enter 24-10-2016
1. Hey, can someone give me an indication of what 50% raw marks would be UMS?
2. (Original post by ohwellohwell)
Hey, can someone give me an indication of what 50% raw marks would be UMS?
If we use Jan 12 as a benchmark (this could vary)

61 = 100%
55 = 90%
49 = 80%
43 = 70%
37 = 60%
31 = 50%
25 = 40%

Assuming you got 36 raw marks you'd be on 58 UMS.
3. Ah ok thankyou very much. appreciate it.
4. (Original post by lilipop)
9 more?! That's horrible, good luck!
5. (Original post by jamib0y)
3 more to go… Economics, C4 and M2
6. GREAT EXAM only got around 59 though
7. (Original post by wibletg)
If we use Jan 12 as a benchmark (this could vary)

61 = 100%
55 = 90%
49 = 80%
43 = 70%
37 = 60%
31 = 50%
25 = 40%

Assuming you got 36 raw marks you'd be on 58 UMS.
Good prediction. Although the January grade boundaries were slightly higher than this (at least for 90 and 100 UMS).
8. does anyone remember what the question was for 3 ii) thanks!
9. (Original post by Ree69)
Good prediction. Although the January grade boundaries were slightly higher than this (at least for 90 and 100 UMS).
I'm pretty sure that's what they were, I took them from the OCR website :P

Edit: oops, it should have been 7 ums between each boundary!

This was posted from The Student Room's Android App on my HTC Desire HD A9191
10. Hope it was not too bad for everyone. I have a few questions.

For 7(iii) would using the ln expansion for ln(n/(n+1)) instead of -ln((n+1)/n) gain any credit of the five marks? Also, would the max r value for the polar co-ordinate question be ok to be left as a surd (can't remember whether it specified 3 s.f.)?

THanks.
11. (Original post by wibletg)
I'm pretty sure that's what they were, I took them from the OCR website :P

Edit: oops, it should have been 7 ums between each boundary!

This was posted from The Student Room's Android App on my HTC Desire HD A9191
Check again - it's 56 for 90 UMS and 63 for 100 UMS.

(Original post by twig)
Hope it was not too bad for everyone. I have a few questions.

For 7(iii) would using the ln expansion for ln(n/(n+1)) instead of -ln((n+1)/n) gain any credit of the five marks? Also, would the max r value for the polar co-ordinate question be ok to be left as a surd (can't remember whether it specified 3 s.f.)?

THanks.
I doubt it tbh (sorry!), the question did explictly say "using the expansion of ln(1+x)..."

Although I imagine getting to the stage of -ln((n+1)/n), or the other way round in your case, would get 2-3 method marks.
12. (Original post by twig)
Hope it was not too bad for everyone. I have a few questions.

For 7(iii) would using the ln expansion for ln(n/(n+1)) instead of -ln((n+1)/n) gain any credit of the five marks? Also, would the max r value for the polar co-ordinate question be ok to be left as a surd (can't remember whether it specified 3 s.f.)?

THanks.

It didn't specify 3sf, purely because I remember getting 0.770 and trying to create a random surd so that it gave that answer... :P
13. For the two mark question near the beginning which asked you to prove tanh(A+B) = the tanh double angle formula, using relevant results from the formula book, i basically stated the standard tan(A+B) result and stated because cosh^2 - sinh^2 = 1 the denominator was different, will this acquire any marks, what is the correct way to answer this question. Thanks
14. Sorry to bother you Mr M... For Q 3ii. I only found one of the solutions, ln(sqrt(3)). How many marks do you imagine I will lose for not attaining the second solution. Thank you
15. (Original post by vayneiscool)
For the two mark question near the beginning which asked you to prove tanh(A+B) = the tanh double angle formula, using relevant results from the formula book, i basically stated the standard tan(A+B) result and stated because cosh^2 - sinh^2 = 1 the denominator was different, will this acquire any marks, what is the correct way to answer this question. Thanks
nope, no marks, that's completely wrong, you use double angle formulae for sinh and cosh and divide over to get tanh and simplify
16. anyone got a list of the questions or a copy of the paper?
17. Anyone got a copy of the paper?
18. (Original post by Wahrheit)
I've got the paper in front of me and I just tried doing it by differentiation and ended up with tantheta=1/root2 which gives a maximum of 0.769800... =0.770

Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: January 7, 2013
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

How does exam reform affect you?

From GCSE to A level, it's all changing

Q&A with Paralympian Jack Rutter

Poll
Useful resources
Study resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.