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    People are saying this is easy? The smartest people I know said it was harder than the Solomon papers which I agree.

    I had no clue what to do with the 2sinx+root3cosx

    I fluffed up on the arithmetic series questions.

    The last question was pretty easy. I got r=2.92 which is £3 which seems reasonable. And for proving it was the minimum I got 59.2 which is positive, hence its the minimum.

    Q1-4 were fodder.

    The question on that shape was really easy

    The cosine one with k in it was okay. I ended up with k/4 which is 3/4 which I got x=0,41.1,180,318.8 for when cosx=-1 and cosx=3/4
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    (Original post by JamieLegg)
    Answers I can remember
    A = 18
    R = 8/9

    N = 28

    Cost was like 520 ish
    no...the cost was ike 483/484 ish...most people got that
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    (Original post by tayloryeah)
    What did you get for the intergration area curve Q?
    226

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    (Original post by target21859)
    For the question where you had to express cosx in terms of k, did you get 4cos^2x-cosx-k=0?
    Yep
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    How many marks would I lose if I didn't sub r back into the cost equation?
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    (Original post by target21859)
    For the question where you had to express cosx in terms of k, did you get 4cos^2x-cosx-k=0?
    yep, then I used the quadratic forumual to find cosx in terms of k
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    (Original post by enaayrah)
    I got something like that
    Omg same
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    is it cosx=k and cosx=(k+1)/4????

    I only got x=0 for part C
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    What even was that.
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    please vote
    http://www.thestudentroom.co.uk/show....php?t=3343941
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    (Original post by target21859)
    For the question where you had to express cosx in terms of k, did you get 4cos^2x-cosx-k=0?
    Yes. I left it like that too though i didn't think it was clear how they wanted it

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    For the integration find the area question, i didnt integrate them seperately and got a wrong answer:\\
    how many marks was it worth and how many would i get :\
    I actually did try to integrate it seperately on the other side of the paper but then i think i crossed it out
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    (Original post by lukejoshjames)
    Really easy paper, I think I only slipped up on the Cos in terms of k question. What did everyone get for that?
    4cos^2x - cosx = k
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    I really hated that exam im hoping the grade boundaries are low
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    (Original post by target21859)
    For the question where you had to express cosx in terms of k, did you get 4cos^2x-cosx-k=0?
    Yes but you had to equate k to 4cos^2x-cos2x, hence why they stated in express in terms of k
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    messed up the factorisation....forgot to put 3 outside the brackets.....messed up the trig ques
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    (Original post by tayloryeah)
    I got a 194, 32 from 0 to 4 plus 162 from 4 to 9, how did you get 224?
    Thats also what I got

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    (Original post by Dinaa)
    :cry2:
    Exactly how i feel at the moment
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    (Original post by Dieselblue)
    People are saying this is easy? The smartest people I know said it was harder than the Solomon papers which I agree.

    I had no clue what to do with the 2sinx+root3cosx

    I fluffed up on the arithmetic series questions.

    The last question was pretty easy. I got r=2.92 which is £3 which seems reasonable. And for proving it was the minimum I got 59.2 which is positive, hence its the minimum.

    Q1-4 were fodder.

    The question on that shape was really easy

    The cosine one with k in it was okay. I ended up with k/4 which is 3/4 which I got x=0,41.1,180,318.8 for when cosx=-1 and cosx=3/4
    You had to sub r = 2.92.. back in to find the actual cost

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    The cubic factorisation was 3(2x+1)(x+4)(x-4)


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