Results are out! Find what you need...fast. Get quick advice or join the chat
Hey there Sign in to join this conversationNew here? Join for free

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

Announcements Posted on
    • 0 followers
    Offline

    ReputationRep:
    Hey, can someone give me an indication of what 50% raw marks would be UMS?
    • 15 followers
    Offline

    ReputationRep:
    (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.
    • 0 followers
    Offline

    ReputationRep:
    Ah ok thankyou very much. appreciate it.
    • 5 followers
    Offline

    ReputationRep:
    (Original post by lilipop)
    9 more?! That's horrible, good luck!
    LOL thanks, what about yourself?
    • 0 followers
    Offline

    ReputationRep:
    (Original post by jamib0y)
    LOL thanks, what about yourself?
    3 more to go… Economics, C4 and M2
    • 0 followers
    Offline

    ReputationRep:
    GREAT EXAM only got around 59 though
    • 1 follower
    Offline

    ReputationRep:
    (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).
    • 2 followers
    Offline

    ReputationRep:
    does anyone remember what the question was for 3 ii) thanks!
    • 15 followers
    Offline

    ReputationRep:
    (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
    • 0 followers
    Offline

    ReputationRep:
    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.
    • 1 follower
    Offline

    ReputationRep:
    (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.
    • 5 followers
    Offline

    ReputationRep:
    (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
    • 0 followers
    Offline

    ReputationRep:
    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
    • 0 followers
    Offline

    ReputationRep:
    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
    • 5 followers
    Offline

    ReputationRep:
    (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
    • 0 followers
    Offline

    ReputationRep:
    anyone got a list of the questions or a copy of the paper?
    • 0 followers
    Offline

    ReputationRep:
    Anyone got a copy of the paper?
    • 0 followers
    Offline

    ReputationRep:
    (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
    Can you upload?

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  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
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: January 7, 2013
New on TSR

Student in a Million awards

All the results from our prize-giving night

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