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    what equation u got for the plane and what was the volume of the tetrahedron?
    I remember that i got 2 for the volume of the tetrahedron.
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    (Original post by A2 student)
    what equation u got for the plane and what was the volume of the tetrahedron?
    I remember that i got 2 for the volume of the tetrahedron.
    so did I!

    p is 7 (i used a as the reference pt)
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    P6 went abhorrently for me. I need an A in Pure Maths.

    Answers I remember:

    I got -root2/2, root2/2 and root 2 for a b and c (can't remember which was which)

    Tetrahedron volume was 2 unit^3. p was 7, I think.
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    (Original post by hornblower)
    P6 went abhorrently for me. I need an A in Pure Maths.

    Answers I remember:

    I got -root2/2, root2/2 and root 2 for a b and c (can't remember which was which)

    Tetrahedron volume was 2 unit^3. p was 7, I think.
    p for wat ?
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    But the induction question was horrible! It took me half an hour thinking until I could prove it and I had only one hour to complete the rest of the paper.
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    oh ... the vectors q ? ...

    yeah it was 7 .... i thgought u were talking about the wierd matrice thing in p6
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    (Original post by infekt)
    its rite ... i got it 2 ... but they asked for the modulus of the det .... unless im forgetting sumthing important

    p=3
    k=18
    a b c ... i dont remember which one was which ... but one was 2root2 root2 and -2root2 ...

    i have a graphic calc and i chcek it useing the matrice funsction ...the answers work like a charm ...
    i got the same as u
    for the det i can't quite remember but i think it was somthing root 24
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    (Original post by keisiuho)
    isnt it (-1)x(-1)x(-1)=-1?
    Well that's what you get when you calculate it, but the determinant is the scale factor of the volume so has to be positive. I can't really remember - we did 2x2 matrices at the beginning of year 12 and this was when we talked about what the determinant actually is and what it represents.

    I got 2 for the volume of the tetrahedron too!
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    (Original post by Bezza)
    I got 2 for the volume of the tetrahedron too!
    ARGH forgot the 1/6 thing Didn't think it was too bad at the time now I've found all these stupid little slips.
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    That was the worst P6 paper that i've ever done!
    I'm convinced that they swapped it at the last minute, cos the questions were in a dogey order, and it was all the crap stuff in P6! God I could kill the people who stole the original papers (if that was the case!) as we would have had a nice paper, instead!
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    Is there anyone who found the question about proof by induction easy.I dont think so . I think it was the most horrible question in the exam.
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    (Original post by A2 student)
    Is there anyone who found the question about proof by induction easy.I dont think so . I think it was the most horrible question in the exam.
    I didn't find it too bad really - I got straight to the answer without making any mistakes, it was just time consuming for only 8 marks - took me 2 pages. It probably was the nastiest proof by induction question I've seen from a P6 paper though.
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    For me it was time consuming as it required much thinking about it but when i got the idea 9after half an hour) it took half a page only.
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    (Original post by keisiuho)
    isnt it (-1)x(-1)x(-1)=-1?
    I dont follow your reasoning, surely det(-I)

    = det
    (-1 0 )
    ( 0 -1)

    = (-1)X(-1) = 1
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    (Original post by ybx)
    i thought the exam was alright, not particular hard, i found the induction one quite challenaging, and i make a very silly mistake in Q5, other than that the rest of the paper is ok, i think i am going to get A in further maths, only 50% on this paper according to my calculation.
    now i just need get ready for M6 on thursday, althougth i didn't really need it
    oh man, you are doing m6~~~m5 is enough for me....
    i found the p6 easier than p4 somehow....
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    Hm... I managed to do nearly all the paper except the proof. I fiddled around with that and made up some steps so I got out what seemed like a logical path.
    I screwed up a, b and c, though - I forgot to root it. *slaps head*

    The last question came out okay, I think. But that was a nastier P6 than past papers.
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    I don't know what the problem was, I found it to be the easiest paper Ive done out of p4/5/6. All past papers were far harder than this one, you must have panicked like a *****.
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    (Original post by A2 student)
    Is there anyone who found the question about proof by induction easy.I dont think so . I think it was the most horrible question in the exam.
    It was the worst question. As a form of compensation though, the vectors question was piss easy.
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    Yeah, the vectors was nice, but the proof was horrible, i decided not to waste time on it, as it appears it took people a long time anyway, and just wrote down what i would have done (the steps for the proof without the proof). I wonder if i will get a mark for it?

    The matrix stuff was alright, and did anyone find that the two graphs at the very end of the complex numbers stuff were a circle (|Z| = 1) and a straight line (for the w plane) of y = -x.

    Still got the joys of M4 and M6 to go.
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    Yes! I got y = -x as well.

    That loci one pissed me off to begin with, then I realised I'd made such a stupid mistake that I'm not even going to say what it is.

    anyway, I corrected it and got it out. The only think I am getting worked up about is the proof, and that's only worth 8 marks
 
 
 
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