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    (Original post by Josieee)
    Thank you that totally makes sense to me thank you so much
    No problem
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    (Original post by HitTheSwitch)
    No problem
    Sorry but when you integrate it, like 1/x would be lnx so how do you know that 1/(1+2x)^2 doesnt integrate to ln? I'm confused... sorry
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    (Original post by Josieee)
    Sorry but when you integrate it, like 1/x would be lnx so how do you know that 1/(1+2x)^2 doesnt integrate to ln? I'm confused... sorry
    You integrate to ln when the top of the fraction is the derivative of the bottom.
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    (Original post by HitTheSwitch)
    You integrate to ln when the top of the fraction is the derivative of the bottom.
    thank you
    • Thread Starter
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    I've done the past 4 papers in the last week and the difficulty level between them varies massively in my opinion.

    So it could go either way tomorrow
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    After exactly how many hours is ur C4 paper in uk cuz over here in Saudi Arabia it is after like 15 hrs...
    wat abt dere....
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    (Original post by Knight91)
    After exactly how many hours is ur C4 paper in uk cuz over here in Saudi Arabia it is after like 15 hrs...
    wat abt dere....
    9.30 GMT which is 15 hours from now
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    so the timing is the same anyways i just hope dat the paper is sumwat easy as C3 paper was not dat hard...i'm actually expecting a bit tougher...i hope its not..
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    (Original post by Anonymous0155)
    9.30 GMT which is 15 hours from now
    o.O
    In Egypt it supposed to be at 9:00AM , which is around 7:00AM GMT.
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    Goodnight and good luck
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    I'm worried! need about 8O ums for an A . good luck everyone!
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    need 79 UMS at the most for an A depending on how C3 went. cba for the A* anymore
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    how do I integrate (1+2t)/(1+t)
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    (Original post by Anonymous0155)
    need 79 UMS at the most for an A depending on how C3 went. cba for the A* anymore
    how do I integrate (1+2t)/(1+t)

    Sorry for quote...just need a quick response
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    only 2 hours left.. m soo scared =| i just wish the question paper is easy this time unlike C3
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    (Original post by skk90)
    how do I integrate (1+2t)/(1+t)

    Sorry for quote...just need a quick response

    integral of y(dx/dt)dt
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    Locked until after the time restriction has passed =) Good luck to anyone sitting it

    http://www.thestudentroom.co.uk/anno...hp?f=373&a=440
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    as writtiin above how was the c4 exam today? 2010 jan
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    If this is Edexcel then we can't talk about it till midnight! If you do want to talk about it then you'll end up with some lovely warning points like me :p:
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    AHAAA
    which is in about six hours?
 
 
 
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