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    (Original post by arsenalfc97)
    I integrated 3^2x as 3^2x/In3 which i now realise is wrong. Do i lose all the marks after this? or if i subbed in right etc could i still get some
    I did this also Think we'll still get the marks for the cone and for the fact that we were taking the cone volume away from our answer
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    when is arsey coming online
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    If you get the integration right but the final answer wrong how many marks lost?
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    (Original post by qyazd)
    how many marks do u have to lose to get an ungradeable
    Anything less than around 30-35/75 is a U
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    Judging reactions i'm guessing
    A* ~ 68
    A ~ 61
    B ~ 53
    C ~ 47
    D ~ 41
    E~ 35
    What does everyone think?
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    for the first question - binomial expansion
    a) 1+ (5/4)x - (5/16)x^2
    b) 3/2
    c) 679/480

    implicit differentiation
    a) proof
    b)(24/5, 16/5) (-24/5, -16/5)

    vectors
    u=-1 , a(5,3,1) or something similar, cant remember exactly
    lambda = 4 p=15
    angle = 31.82
    length = 7.06

    k=4 for the cos^2x one

    27/32 for something else

    32ln2 + 12 for something else
    this was with the q = 2 - (1/ln3) i think

    cartesian equation a= 2 b=-5

    t= 0.473

    final question volume of revolution i got 13pi/ln3
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    (Original post by Paraphilos)
    Sorry, I wouldn't have picked up on it if I knew. If it's any consolation, I make hundreds of ridiculous claims and errors when I do work even at undergraduate level.
    No it's not your fault for picking up on it, haha, you were only trying the defend the person. Well I was temporarily unable to count the words in my French essay at the end of that exam because I was shaking so much after 3hrs of stress... The invigilator came over and was like, "Do you need help counting?" I nearly died. I had a STEP exam right after as well... oh the irony.
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    Arseys MS is out he says boundaries around 70 for a*, 64 for and 57 for a B. Think i got full marks on such an easy paper!
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    http://www.thestudentroom.co.uk/show....php?t=3399451
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    (Original post by physicsmaths)
    4=k
    yh I got k=4. seems to be a question that's divided people

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    (Original post by DoctorDren)
    Let me just say 3^x squared is 9^2x. 100% that's correct
    would it give a single mark?
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    (Original post by DoctorDren)
    Let me just say 3^x squared is 9^2x. 100% that's correct
    Substitute x=1 then ...it's not.
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    For the last question i did this instead why is it wrong??

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    Attached Images
     
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    (Original post by Humbers)
    I dont know what you've been smoking but that is no where near mathematically correct
    Oh dear lord;

      (3^x)^2 = (3^2)^x 



\int_{}^{} a^x =  \frac{1}{ln(a)}a^x

    This means that:

     \int_{}^{} 9^x = \frac{1}{ln(9)}9^x

    As stated.

    Oh by the way, it's nowhere. For example, you're nowhere near mathematically or grammatically correct.
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    (Original post by regina falange)
    I did this also Think we'll still get the marks for the cone and for the fact that we were taking the cone volume away from our answer
    I did that too... 6 mark question, we will probably get 2 marks i think


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    (Original post by tawaz1997)
    Attachment 429797


    K was actually 4, don't know how I got 2 in the exam after initially getting 4...

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    How many marks was this?
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    Thank you! Needed to mark my C3....
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    Did anyone else (24/5,16/5) for where DY/DX= 0? (Q2)
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    (Original post by jacalv)
    Arseys MS is out he says boundaries around 70 for a*, 64 for and 57 for a B. Think i got full marks on such an easy paper!
    stop ch*tting **** you little imbecile
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    (Original post by _jess)
    for the first question - binomial expansion
    a) 1+ (5/4)x - (5/16)x^2
    b) 3/2
    c) 679/480

    implicit differentiation
    a) proof
    b)(24/5, 16/5) (-24/5, -16/5)

    vectors
    u=-1 , a(5,3,1) or something similar, cant remember exactly
    lambda = 4 p=15
    angle = 31.82
    length = 7.06

    k=4 for the cos^2x one

    27/32 for something else

    32ln2 + 12 for something else
    this was with the q = 2 - (1/ln3) i think

    cartesian equation a= 2 b=-5

    t= 0.473

    final question volume of revolution i got 13pi/ln3
    I think you binomials' wrong, rest looks good though
 
 
 
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