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    (Original post by MedMed12)
    Im sure you will!
    Ohh is this like all the past paper questions in a booklet? Or like other questions? Going to start on Maths soon, I honestly feel like I’m failing L I don’t think I will get AAA but just going to try I guess.
    Wow well done :O I’d be so happy with a score like that :P come on, losing one mark is inevitable :P
    I think you mean Kal Ho Na ho!
    Go you, how are you still alive and awake with all this work for Maths -_-
    I want you to get into Warwick, because you deserve it!
    Woahh :O
    Yeah it's' that one.
    Lol you'll get AAA dw
    1 mark shouldn't have been lost! -_-
    No YOLO! :cool:
    lol i enjoy maths?
    We will see
    and yeah but he's got a laid back attitude as he's doing another year and is going to aim for warwick and anooy me if i get in when he comes O.o But very smart..he's been playing Warcraft and played pokemon on his ds in further maths lessons lol.
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    Does anyone think I would be penalised if I used the product rule for questions where you could use the quotient?? I still get the same answer... I'm just more comfortable using the product rule. Anyone know if markschemes accept this alternative?
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    can someinw check through this i think its wrong because when u substitute the value 2 in dont u get -2ln-3 ? but they get -2ln3

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    (Original post by samfreak)
    can someinw check through this i think its wrong because when u substitute the value 2 in dont u get -2ln-3 ? but they get -2ln3

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    The "| |" brackets mean they take the absolute value, basically the positive.
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    (Original post by Prendah)
    The "| |" brackets mean they take the absolute value, basically the positive.
    thankssssss i was going mad haha x

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    (Original post by Serpentine111)
    Does anyone think I would be penalised if I used the product rule for questions where you could use the quotient?? I still get the same answer... I'm just more comfortable using the product rule. Anyone know if markschemes accept this alternative?
    you may still get marks but it makes more sense to use the quotient rule plus it's neater.
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    (Original post by ACBLISS)
    Yeah it's' that one.
    Lol you'll get AAA dw
    1 mark shouldn't have been lost! -_-
    No YOLO! :cool:
    lol i enjoy maths?
    We will see
    and yeah but he's got a laid back attitude as he's doing another year and is going to aim for warwick and anooy me if i get in when he comes O.o But very smart..he's been playing Warcraft and played pokemon on his ds in further maths lessons lol.
    oh coolio!
    iA
    haha good point, esp when its a silly mistake -_- In maths, most the time peoples mistakes are calculation errors.
    That is crazy, but he won't be in your year though he'll be the year below so its fine some people are so talented at Maths I just don't understand
    lol
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    (Original post by MedMed12)
    oh coolio!
    iA
    haha good point, esp when its a silly mistake -_- In maths, most the time peoples mistakes are calculation errors.
    That is crazy, but he won't be in your year though he'll be the year below so its fine some people are so talented at Maths I just don't understand
    lol
    If i get into Warwick that is lool
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    (Original post by ACBLISS)
    If i get into Warwick that is lool
    shh positive thinking!!!
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    (Original post by MedMed12)
    shh positive thinking!!!
    Yeah yeah lol
    I have a question for you, Integrate sin5xsin2x
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    (Original post by ACBLISS)
    Yeah yeah lol
    I have a question for you, Integrate sin5xsin2x

    you've asked me this same question before -_- or something similar
    if you want a clue hint: by parts
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    (Original post by MedMed12)
    you've asked me this same question before -_- or something similar
    if you want a clue hint: by parts
    incorrect
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    (Original post by ACBLISS)
    incorrect
    1/6*sin3x - 1/14*sin7x +C thats what I got. Tell me what I've done wrong. Don't ask me to show you my working. I don't know how to use our scanner on my laptop
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    (Original post by MedMed12)
    1/6*sin3x - 1/14*sin7x +C thats what I got. Tell me what I've done wrong. Don't ask me to show you my working. I don't know how to use our scanner on my laptop
    That's right, but you didn't have to use by parts lol....
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    (Original post by ACBLISS)
    That's right, but you didn't have to use by parts lol....
    realised after I posted my reply :P
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    (Original post by MedMed12)
    realised after I posted my reply :P
    Such a weirdo
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    (Original post by ACBLISS)
    Such a weirdo
    thats your name (unless you prefer four eyes 8) )
    anyway im going to bed now- had such throbbing head ache today :'( so night night!
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    (Original post by MedMed12)
    thats your name (unless you prefer four eyes 8) )
    anyway im going to bed now- had such throbbing head ache today :'( so night night!
    night night shorty
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    Daaaamn that integration of 2^t got me how do u do that ?
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    (Original post by Revisionbug)
    Daaaamn that integration of 2^t got me how do u do that ?
    y = 2^t

    \ln y = \ln 2^t

    \ln y = t\ln 2

    Differentiate both sides wrt t,

    \dfrac{1}{y} \times \dfrac{dy}{dt} = \ln 2

    \dfrac{dy}{dt} = y\ln 2 = 2^t \ln 2
 
 
 
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