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Edexcel A2 C4 Mathematics June 2016 - Official Thread Watch

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    (Original post by StrongerinEU)
    Thought the exam went well but I'm so annoyed about Brexit that I don't even care.
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    (Original post by k.russell)
    I am thinking 3? Not 100% tho you'll probs only be -1, if that dw
    F*ck! Easy mark lost.. every mark counts, this year will be high boundaries.
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    (Original post by d14m)
    Can someone please confirm whether or not there was a misprint on question 6, if so how will Edexcel mark this question?


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    Was that the integration with the chain rule?
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    (Original post by Mattematics)
    Agree with all of these. Need to double check my volume, 512pi -somethingpi? Think I also got 4/3pi -root3?
    I gota volume of 544 π for the Cylinder and 204.8 π for the Dome.
    Then,
    544π -204.8π = 339.2 π
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    anyone know how many marks for question 4? And what did question 5 ask??
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    (Original post by StrongerinEU)
    Thought the exam went well but I'm so annoyed about Brexit that I don't even care.
    tell me about it
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    (Original post by King:Fu)
    Can confirm I got these answers.
    Yes!! I hardly every get 100% I just hope you guys are right
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    (Original post by ryanroks1)
    Would 71 on C3 and 68 on C4 be A* overall do people think?
    yeah
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    For the last question i got everything right except i substituted lambda=+-2/5 to EP instead of E by mistake. How many marks would you think I'll lose?
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    Unofficial MS - no guarantees

    http://www.thestudentroom.co.uk/show...3#post66067903

    overall slightly above average but that's to be expected. Fairly nice paper.
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    (Original post by d14m)
    What question was this again and what the misprint?


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    The misprint was on question 6. It said

    Question 6:

    (i) ........


    (ii) (a) .........


    In actual fact the (a) should have been before the (i)

    It has no effect on anything though, it would be nice to get a mark or two for noticing.

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    (Original post by M3WIZARD)
    Can Someone verify if all of these are correct. I believe I got everything here - I just couldn't remember what the last term for Q1 was - but I distinctly remember the first 3 terms
    actually I think the last term of the binomial is -625/4 that definitely seems more familiar to me, so that is 3 x 4 x -5 x (5/2)^3 x 1/6 (pretty sure that's correct method
    Is that what you got?
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    (Original post by CourtlyCanter)
    I gota volume of 544 π for the Cylinder and 204.8 π for the Dome.
    Then,
    544π -204.8π = 339.2 π
    Yup, I got it wrong. Didn't do the cylinder to the y axis
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    (Original post by riffy123)
    For the volume question, how was it 544pi? It had to be 576pi as u had to work out the whole cylinder and take it away by the integral surely!
    The volume of the cylinder was pi(64 x (17/2)) which is 544
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    (Original post by Zuzuvela)
    The misprint was on question 6. It said

    Question 6:

    (i) ........


    (ii) (a) .........


    In actual fact the (a) should have been before the (i)

    It has no effect on anything though, it would be nice to get a mark or two for noticing.

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    nah bro cos it was ii)a and ii)b lol
    stop talking bout misprints before you give me a heart attack!
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    (Original post by k.russell)
    I'm in the same boat as you my friend, everything there is what I had - the only one I am a little uncertain about is the last term of the binomial
    Im pretty sure that will only lose us 1 Accuracy mark if that's the case anyway But we've probably just forgot :P We could still get 100 UMS if we were wrong still.
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    Can someone explain how the volume wasn't 576Pi-1024/5Pi.. !??!?! Did anyone else use 9 for the height of the cylinder and 8 for the radius??
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    (Original post by cjlh)
    My full solutions:

    1) 1/8 - 15/16 x + 75/16 x^2 - 625/32 x^3

    2) 0.6595, 1.083, 8/3 ln(2) - 7/9

    3) (-2-4xy)/(2x^2 + 4 + pisin(0.5pi)), (3pi+62)/(pi+22)

    4) x=e^(ln(60)-2.5t)), 633 mins

    5) (-5root(3)/16), (4,5root3)

    6) 3ln(3y+2)-2ln(y)+c, lambda=8, 4pi/3 - root3

    7) k=17/2, 1696pi/5

    8) {3,5,0}, r = {1,5,2} + lambda{-5,4,3}, k=2, cos(theta)=4/5, area=12/5, possible positions {3, 33/5, 16/5} and {-1, 17/5, 4/5}
    Shdnt q6 be 4pi/3 - root3/2 ? As i rmb it's 4(pi/3 -root3/8) fro the previous step?
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    (Original post by k.russell)
    nah bro cos it was ii)a and ii)b lol
    stop talking bout misprints before you give me a heart attack!
    We shall see when the paper comes out. Imagine if it was actually significant tho haha

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    Would I lose a mark for writing 2.40 instead of 2.4 for the area of vector. I used sin 36.7 that's why.
 
 
 
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