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    This question is in the book and a similar form in the mock paper Q..

    ∫ (x+2) / √(x2 + 6x + 4) dx

    I'm not sure how to split up the numerator...
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    (Original post by Lucky Penny)
    This question is in the book and a similar form in the mock paper Q..

    ∫ (x+2) / √(x2 + 6x + 4) dx

    I'm not sure how to split up the numerator...
    It's simply ∫ (x/√(x2 + 6x + 4) dx + ∫ 2 / √(x2 + 6x + 4) dx
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    (Original post by Lucky Penny)
    This question is in the book and a similar form in the mock paper Q..

    ∫ (x+2) / √(x2 + 6x + 4) dx

    I'm not sure how to split up the numerator...
    x² + 6x + 4 = (x+3)² - 5
    x + 2 = x+3 - 1
    So I = ∫tdt/√(t²-5) - ∫dt/√(t²-5)
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    (Original post by Gaz031)
    It's simply ∫ (x/√(x2 + 6x + 4) dx + ∫ 2 / √(x2 + 6x + 4) dx

    you guys starting revising already for P5:eek: - man, nice and eaerly - better start too i spose

    phil
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    (Original post by Phil23)
    you guys starting revising already for P5:eek: - man, nice and eaerly - better start too i spose

    phil
    I pretty much finished revising at the start of May..., though I did recently do the heinemann review exercise again.
    Now everything just depends on how it goes 'on the day'.
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    (Original post by Gaz031)
    I pretty much finished revising at the start of May..., though I did recently do the heinemann review exercise again.
    Now everything just depends on how it goes 'on the day'.
    And I didn't revise anything lol
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    man! I didn't finish the COURSE til the middle of may!
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    (Original post by lesser weevil)
    man! I didn't finish the COURSE til the middle of may!
    actually, you can find everything for P5 in formula book ... Im pretty sure about it
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    (Original post by lesser weevil)
    man! I didn't finish the COURSE til the middle of may!
    Hmm, well the teachers at my institution are notoriously badly organised so I teach myself. A friend hasn't finished P6 yet and we both have the exam in less than 2 weeks time :eek:
    You may be more ready for the exam though as the module is still fresh in your mind.
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    (Original post by Gaz031)
    I pretty much finished revising at the start of May..., though I did recently do the heinemann review exercise again.
    Now everything just depends on how it goes 'on the day'.
    I've just redone some of the Solomon P5s. Unfortunately, I seem to be making the same mistakes as when I did them the first time!

    I'll revise the gradient proofs over the weekend, and one or two Reduction Formula nasties, like

    ∫(sin(nx))/(sin x) dx

    Aitch
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    (Original post by BCHL85)
    actually, you can find everything for P5 in formula book ... Im pretty sure about it
    Certainly I find the formula book essential for P5, but not needed for P4.

    Aitch
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    (Original post by Aitch)
    I've just redone some of the Solomon P5s. Unfortunately, I seem to be making the same mistakes as when I did them the first time!

    I'll revise the gradient proofs over the weekend, and one or two Reduction Formula nasties, like

    ∫(sin(nx))/(sin x) dx

    Aitch
    I'm sure you notice that you do questions more quickly as you get more practice. A few silly mistakes here and there aren't to be worried about too much, as there's usually extra time left to check work in the exam.

    I think i'm going to forget about P2/P5 until Saturday afternoon as my time will be better spent revising Biology for Tuesday.
 
 
 
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