C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST

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  1. pranav?'s Avatar
    • New Member
    • Posts: 7
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    Dafq? 2 pages already?
  2. Mr Tough's Avatar
    • Exalted Member
    • Posts: 291
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    (Original post by paul272)
    are u serious, equation of normal, i read it as though it was equation of tangent, i guess thats what happens when u have 3 hours of sleep before the exam,so peak for me
    I had 3 hours of sleep but in almost every past paper i made that mistake, so when checking i made sure and realised
  3. EatRainbows's Avatar
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    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    What do you think grade boundaries will be?
  4. JordanS94's Avatar
    • Overlord in Training
    • Location: Middle Earth
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    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    no improvement from my first time round dammit ¬¬ what a waste of £22
  5. tizza1394's Avatar
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    • Posts: 59
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    (Original post by Mr Tough)
    me too, sick one

    btw did you take x^-1/2 out of the brackets for 7a)

    i did , but im pretty sure you get the same answer anyway
    Yes, I did that too!
  6. The_Pen's Avatar
    • Junior Member
    • Posts: 52
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    Please answer guys. For Q's 3, instead of using Arsey's method, I used the Rsin/cos (x-a) method to the answer. Will I get full marks?
  7. meraphox's Avatar
    • Exalted Member
    • Location: Barnet
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    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    hey arsey what about grade boundaries? what do you think 70/75 will be?
  8. amoo94's Avatar
    • Junior Member
    • Location: Guildford
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    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    eurgh, i think i only got around 60/75
  9. holahola's Avatar
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    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    grade boundaires
  10. Mr Tough's Avatar
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    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    (Original post by Arsey)
    solutions now in the first post
    Hey, you know for 7a, you can take x^-1/2 out of the brackets right?

    Thanks
  11. robthefool's Avatar
    • Exalted Member
    • Location: London, UK
    • Posts: 346
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    Horrible horrible paper. Bye bye first choice uni.. that's the second impossible paper I've had this week..

    Grade boundary predictions?
  12. knowledgecorruptz's Avatar
    • Benevolent Member
    • Location: Sussex
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    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    Thank you Arsey! Seriously, really appreciate these solutions threads.
  13. gahyee94's Avatar
    • Junior Member
    • Posts: 54
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    messed up question 8b and c hoping I'll get some working out marks for the big trigonometry question
    can you not use double angle to work out the last section to the trig question?
  14. annony's Avatar
    • Respected Member
    • Posts: 234
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    i think it was harder in comparison to jan
    jan was EASY!

    i think 63 for an A
  15. meraphox's Avatar
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    • Location: Barnet
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    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    (Original post by pranav?)
    Dafq? 2 pages already?
    hahaha pranav loool !
  16. deathhead's Avatar
    • Exalted Member
    • Posts: 287
    I ****ed it up so bad :'(:'(:'(:'( I was getting 100% on past papers but that was honestly the most difficult paper ever.
  17. Mr Tough's Avatar
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    • Posts: 291
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    (Original post by The_Pen)
    Please answer guys. For Q's 3, instead of using Arsey's method, I used the Rsin/cos (x-a) method to the answer. Will I get full marks?
    If you mean for the differentiated part excluding the e^f(x) term, then yes that would be an alternate way of approaching the question and provided you still got the right answer, I cannot see a way they can fault you.
  18. niklasR's Avatar
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    • Location: Düsseldorf, Germany
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    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    Woohoo! I loved it! The best C3 paper I have ever done, and thanks Arsey for the solutions. I think for 7 a) ii) I've got (80x)/(2x-1)^4, and part b) i've only got it as (cos^2(arctan(x/3))/6 or so; I mean as this is "in terms of x", I should get the marks, shouldn't I?
    For 8 c) I got c=-7 instead of 7, so not much lost there - I think and hope that's an A for me
  19. Benjyxo's Avatar
    • Junior Member
    • Posts: 26
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    OMG, didnt see the x >0 for 3! but -pi/9!! still should be 100 ums :3
  20. MinpoloD's Avatar
    • Exalted Member
    • Location: London
    • Posts: 275
    Re: C3 June 2012 - Post Exam Thread - Solutions and Paper in the FIRST POST
    I really liked this paper although later I realised I messed up 7b, where I wrote a 1 instead of a 9. Oh well. I was write up to a point. Hopefully I only lost 2/3 marks on that question.

    Thank you arsey for reassuring me. I was in a panic state for several hours after I realised that.
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