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OCR A Maths C1 & C2. How did it go?

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    I thought C2 was a joke.
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    MEI?

    I thought it was all fine, except sinx=1/2, and calculate what tanx was. I did it, but managed to spend a quarter of an hour doing the the really, really long way.
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    Nah
    OCR A
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    joke as in hard or easy?

    please say you thought it was hard.
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    A joke as in piss easy?

    I had to resit C1 because I got a low A in it, I bloody dropped 3 marks :mad: I couldn't work out the first part of the question about that cube, please enlighten me
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    Only did C1 (OCR) myself. Found some of it annoyingly tricky. Certainly seemed harder than all the past papers, but then that's always the case I suppose.

    What did everyone get for question 7, part where it asked for y=x+c?

    Also, question 8 part 1: Show that A=2x^2+32/x....couldn't do that one.

    And finally, the last question, what did you get for the equation of the tangent?
    I got something like 6x+8y-16=0 (rough guess, I'm not sure about the constant)
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    C1 was easy compared to C2.
    Some of the questions on C2 ive never cum across before.
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    I did both of the exams today. C1 was a reatke from January, and I thought it was absolutely soo hard!! It was much harder than the January one, where I got a D I did not understand the one about the cuboid at all! And just got soo randomly confused with most of the questions!
    Luckily I found C2 reasonable. I think i'LL have scored quite highly on that one, hopefully to mkae up for a DREADFUL c1!!
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    C2 was impossible, i hardly did any of the questions cos i was just like where the hell do i start?!?! i was SO close to asking if I could leave!! C1 was ok... xxxx
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    Did anyone at all understand the first part of the question to that annoying cube question in C1?!!!!?? Everyone seemed to have trouble with that
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    I just bull****ed about having top and bottom base, therefore the Area for that was 2x^2 and than I had 4 other faces times 8 and devided by x or sumthing like that.
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    OCR A C2 = Exam code 4722/01? If so, then I found it easy. Only question that I had any doubts about was the one where it asked you to sum the first 100 terms of the sequence. As it was oscillating I just summed it as 2*50 + 2*-1 = 50. Will that do or was there a 'proper' formula for doing it?
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    when you sketch the curves do you have to use graph paper, because I compltely forgot about it and sketched the graphs in my booklet. I still labelled the axis though. Is that OK
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    I found C2 absolutely IMPOSSIBLE. But I get the feeling I did WAY better on C1, so hopefully it'll all even out and I'll get a B or a C..which sucks, 'cause I was hoping for an A. Looks like I'll be retaking C2 come January!
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    (Original post by m00c0w06)
    OCR A C2 = Exam code 4722/01? If so, then I found it easy. Only question that I had any doubts about was the one where it asked you to sum the first 100 terms of the sequence. As it was oscillating I just summed it as 2*50 + 2*-1 = 50. Will that do or was there a 'proper' formula for doing it?
    yeh i got confused on that question, as well as all the others. didnt no whether to use the AP or GP formula.. cos theres Sn=n/2[2a+(n-1)d] for AP and there's Sn = a(1-r^n) / 1-r for GP

    but overall i thought that paper was absolutely impossible and i've definately got to retake it, as well as S1... yay

    xxxx
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    (Original post by mullabc.02)
    when you sketch the curves do you have to use graph paper, because I compltely forgot about it and sketched the graphs in my booklet. I still labelled the axis though. Is that OK

    oh ****e, i did that too... i did the tinest drawings, like 2cm by 2cm...didnt even think about the graph paper....whoooooops
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    I dont even see the point in doing Stats since you never use it.
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    Anyone have a set of answers for C1? I'll put down some of what I can remember:

    1:i) Gradient=18/3=6
    ii) dy/dx= 2x+1; When x=3, gradient= 7

    6. i) This part was a substitution, let y=x^2
    iv) Think I got one turning point when x= root 5...

    7. At the end of it all I got c=-5

    8. i) Couldn't do
    ii) Differentiated for DA/dx...can't remember the result
    iii) Let DA/dx=0. Came out as 2 for me.

    9. Got the final equation of the tangent to be something like what I posted above.
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    (Original post by m00c0w06)
    2*50 + 2*-1 = 50.
    I was unsure about that too. I thought that was a bit too easy for a 3 mark question so i used da fourmula by summing up consecutive terms and the difference was zero and I got 50 aswell!

    But everything after that was piss easy!

    The geometric question about the money in the bank was a bit wierd. What answer did everyone get?
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    C1 was ok but C2 was awful
    I didnt use the graph paper either, I totally forgot about it.

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Updated: June 11, 2006
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