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AQA A2 Mathematics MPC4 Core 4 - 9th June 2015 [Discussion & unofficial markscheme] Watch

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    Anyone got any good resources for parametric transformations?


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    When dealing with partial fractions when do you have to divide is it when the denominator has a higher degree of power than the numerator.


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    Why has this confused me so much? It is only 2 marks, I think I'm overcomplicating it but I just cannot seem to do it. Can anyone help?
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    Q5 jan 13 !

    Nevermind, I managed to work it out hahah I was definitely overcomplicating it.. oh well.
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    Any tips on learning differential equations and exponentials?
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    (Original post by UOE15)
    Why has this confused me so much? It is only 2 marks, I think I'm overcomplicating it but I just cannot seem to do it. Can anyone help?
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    Q5 jan 13 !

    Nevermind, I managed to work it out hahah I was definitely overcomplicating it.. oh well.
    Did you do it by inspection?


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    any idea what 90 ums would be on the core 3 paper we sat? surely it must be lower than last year? :/
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    (Original post by HennersPD)
    any idea what 90 ums would be on the core 3 paper we sat? surely it must be lower than last year? :/
    Chill - it'll be around 64 I reckon.


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    i just dont get parametric or cartesian equations at all
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    (Original post by CD223)
    Did you do it by inspection?


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    Yeah I did! Is that how you would have done it?
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    (Original post by UOE15)
    Yeah I did! Is that how you would have done it?
    Yup! Differential of inner bracket is on the outside - quickest way


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    Now stuck on Q7, the whole of part B. I just cannot do it!! (jan 13..)
    Anyone able to help?
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    (Original post by UOE15)
    Now stuck on Q7, the whole of part B. I just cannot do it!! (jan 13..)
    Anyone able to help?
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    Here's bi, I found it really difficult too when I first did it, it's just about rearranging and substitution really. There's probably and easier method but I Hope it helps


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    (Original post by saad97)
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    Here's bi, I found it really difficult too when I first did it, it's just about rearranging and substitution really. There's probably and easier method but I Hope it helps


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    Thank you!!
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    (Original post by UOE15)
    Now stuck on Q7, the whole of part B. I just cannot do it!! (jan 13..)
    Anyone able to help?
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    This is part bii)... I had to look up this one because I was completely baffled by it but this method does make sense, do you understand what I've done?


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    (Original post by CD223)
    Chill - it'll be around 64 I reckon.


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    Oh Ok thanks - any advice for getting 100 UMS in core 4 as I'll need this I'm in any position to get that A* i need for uni! Bath are annoying the increased my offer to include an A* in maths due to the high competition for places on my course :/
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    (Original post by saad97)
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    This is part bii)... I had to look up this one because I was completely baffled by it but this method does make sense, do you understand what I've done?
    Yeah I do understand what you've done, it is logical but I just don't think I'd remember how to do it in the exam haha
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    (Original post by HennersPD)
    Oh Ok thanks - any advice for getting 100 UMS in core 4 as I'll need this I'm in any position to get that A* i need for uni! Bath are annoying the increased my offer to include an A* in maths due to the high competition for places on my course :/
    Redo all past questions you've got wrong!


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    (Original post by CD223)
    Redo all past questions you've got wrong!


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    Ok! Thanks! That question 8a on yesterday's paper wasn't even bad, so annoyed I couldn't finish it :/ what mark do you think you got on the paper?
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    (Original post by HennersPD)
    Ok! Thanks! That question 8a on yesterday's paper wasn't even bad, so annoyed I couldn't finish it :/ what mark do you think you got on the paper?
    What I wrote on the mark scheme was what I put down in the paper so I'm hoping I got the majority right but probably missed some method marks - 71-72 maybe?

    Core 4 will be hard


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    In June 2014 question 1, do they really accept this for both marks finding the Cartesian question?

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    There's two solutions there! I don't know why that gets 2 marks?


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