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    Does anyone else have this exam tomorrow afternoon?

    Prepared?

    I'm confident, but I'm ******** myself at the same time. No idea what they're going to throw at us this year, and if the paper is anything like the last two, we should all be worried.

    AQA, by the way.
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    bump
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    I'm doing it. I feel the same about it.
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    :sigh: Good luck
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    No one else doing it today?
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    This thread fails. :sigh:
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    I did the exam today, i thought i was quite nice actually, how did everyone else think it went?
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    The exam went great for me... until I hit the last two questions.
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    The exam was ok apart from the sudden U sequence business and the end question?
    i could not get the bloody W's to work for me.
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    That exam was the biggest ****. :p:
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    (Original post by jahan218)
    I did the exam today, i thought i was quite nice actually, how did everyone else think it went?
    Went pretty good for me, I only missed out one question, though...the 3 marker at the end of Question 7.
    (Original post by Danny A G)
    The exam went great for me... until I hit the last two questions.
    Lol. I managed to do the induction part. And at the very end I just kind of assumed that w+w2+w3=-1
    (Original post by ALICEMOON)
    The exam was ok apart from the sudden U sequence business and the end question?
    i could not get the bloody W's to work for me.
    See above :mmm:
    (Original post by Shawshank)
    That exam was the biggest ****. :p:
    :console:


    Anyone manage to nick an exam paper or have any sources? I want to find out my grade.
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    i done it cudnt get 7b 2 work though. the last ? was ok not as hard as i thought it could be,anybody know how to do 7b?
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    (Original post by ajay_ganger)
    i done it cudnt get 7b 2 work though. the last ? was ok not as hard as i thought it could be,anybody know how to do 7b?
    you had the fact that
    1+w+ w^2 + w^3 + w^4 + w^5 + w^6 =0
    i rearranged to get
    w+ w^2 + w^3 + w^4 + w^5 + w^6 = -1

    then paired up the roots that made cosines
    (like part i, you were told to show that w^2 + w^5 = 2cos (whatever it was)

    so i did

    (w + w^6) + (w^2 + w^5) + (w^3 + w^4) = -1

    then because you have a 2 in fromt of every cos, you can divie by 2

    therefore

    cosa + cosb + cos c = -1/2

    cant remember what a b and c are

    which equals what it said you needed.
    thats what i did anyways..

    is that even the right question? was it 7b or was that the proof by induction one?
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    what did everyone do for the proving that
    1+w+ w^2 + w^3 + w^4 + w^5 + w^6 =0
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    (Original post by jahan218)
    what did everyone do for the proving that
    1+w+ w^2 + w^3 + w^4 + w^5 + w^6 =0
    i knew that w = e^2pi/7 then w^2 = e^4pi/7 w^3 = e^6pi/7 and so on then wen u at all the roots you get 0 all the isin theta cancel
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    7b is the induction 1 only ? i cudnt do. 3 marks down the drain!
 
 
 
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