Hey there! Sign in to join this conversationNew here? Join for free
    Offline

    20
    (Original post by Insight314)
    Newbie is just a phrase m8. I guess I should've said "I am unknowledgeable of this banned trend."
    Posted from TSR Mobile
    Is there a banned trend?
    Offline

    8
    ReputationRep:
    (Original post by Mathemagicien)
    I wouldn't know, but I'd imagine you'd lose quite a few marks, if this is what you wrote in the exam, sorry
    Fair enough cheers. How many do you think the approximations were in total?
    Offline

    20
    (Original post by matthewdjones)
    Fair enough cheers. How many do you think the approximations were in total?
    Hard (for me) to say, I haven't really paid too much attention to the STEP mark schemes, sorry

    One of the regulars here will probably give you an estimate
    Offline

    0
    ReputationRep:
    Can anyone explain the intuition behind the theorem on cyclic quadrilaterals in III 2009 q6? And how many marks would that last part be worth?
    Online

    17
    ReputationRep:
    (Original post by Cnoel)
    Can anyone explain the intuition behind the theorem on cyclic quadrilaterals in III 2009 q6? And how many marks would that last part be worth?
    Not very many at all.
    All those 4 e^i whatevers have modulus 1 so all lie on a circle (forming a cyclic quadrilateral by definition). You've proven a relationship between the distances between then and since you can multiply the result by any positive real number the theorem for all cyclic quadrilaterals (Ptolemy's Theorem) follows.
    • Thread Starter
    Offline

    22
    ReputationRep:
    (Original post by matthewdjones)
    Fair enough cheers. How many do you think the approximations were in total?
    Probs two each.
    Offline

    14
    How was I supposed to do STEP III Q8 2010, the first line?
    • Thread Starter
    Offline

    22
    ReputationRep:
    (Original post by EricPiphany)
    How was I supposed to do STEP III Q8 2010, the first line?
    Notice that it's the quotient rule. i.e: the integrand is the derivative of R(x) / Q(x).
    Offline

    14
    (Original post by Zacken)
    Notice that it's the quotient rule. i.e: the integrand is the derivative of R(x) / Q(x).
    Ye I had a look at a solution. I just couldn't manage it without that realisation. I'll just have to keep an open mind for these types of things.
    Offline

    1
    ReputationRep:
    Anyone know if we'd lose any marks for using an equal sign with 2 lines rather than one with 3 when 3 is appropriate (e.g. when simplifying)? I've only been using the two-lined one unless three lines are used in the question and I assumed they wouldn't care
    Offline

    14
    ReputationRep:
    (Original post by jweo)
    Anyone know if we'd lose any marks for using an equal sign with 2 lines rather than one with 3 when 3 is appropriate (e.g. when simplifying)? I've only been using the two-lined one unless three lines are used in the question and I assumed they wouldn't care
    Pretty sure they wouldn't care (unless it was some dodgy question about the differences between equal signs).
    Offline

    2
    ReputationRep:
    Just did a STEP iii 2013 mock (it was definitely a pain but it seemed very possible to avoid vectors and complex numbers thankfully - did q1,2,5(partial),7,12 so am fairly happy. In q7(the not so nice DE), I did all of it but part (iii) completely. In part (iii) I did manage to find E(x) though and differentiated that - just didn't show the inequality. Any idea what I might lose?
    • Thread Starter
    Offline

    22
    ReputationRep:
    (Original post by tridianprime)
    Just did a STEP iii 2013 mock (it was definitely a pain but it seemed very possible to avoid vectors and complex numbers thankfully - did q1,2,5(partial),7,12 so am fairly happy. In q7(the not so nice DE), I did all of it but part (iii) completely. In part (iii) I did manage to find E(x) though and differentiated that - just didn't show the inequality. Any idea what I might lose?
    Look at the OP (section 5 iirc), there's a markscheme for III 2013 available, why don't you use that?
    Offline

    2
    ReputationRep:
    (Original post by Zacken)
    Look at the OP (section 5 iirc), there's a markscheme for III 2013 available, why don't you use that?
    Thanks, didn't realise.
    Offline

    1
    ReputationRep:
    (Original post by tridianprime)
    Just did a STEP iii 2013 mock (it was definitely a pain but it seemed very possible to avoid vectors and complex numbers thankfully - did q1,2,5(partial),7,12 so am fairly happy. In q7(the not so nice DE), I did all of it but part (iii) completely. In part (iii) I did manage to find E(x) though and differentiated that - just didn't show the inequality. Any idea what I might lose?
    did this paper recently myself and yeah vectors and complex numbers were horrible but for me the three mechanics Qs were pretty easy (got 15,20,20 for those) but I messed up Q7 about D.E (got just 7 marks) - i guess I didnt completely get the point. The other two Qs I did were 1 and 2 (got 18,15 for those)
    Hope the coming up STEP 3 brings with it some easy mechanics as well (as Siklos is probably gonna come up with some horrible vectors and complex numbers in pure )
    Offline

    20
    (Original post by tridianprime)
    Just did a STEP iii 2013 mock (it was definitely a pain but it seemed very possible to avoid vectors and complex numbers thankfully
    Why would you want to avoid complex numbers?
    Offline

    1
    ReputationRep:
    (Original post by Mathemagicien)
    Why would you want to avoid complex numbers?
    complex numbers isnt one of my strengths haha- also I did FP2 last year and so havent really been in complex numbers for a while

    EDIT : Just realised you werent quoting me (as I also said something about complex numbers) lol...
    Offline

    3
    ReputationRep:
    Is it just me, or is STEP 3 a whole order of magnitude tougher than STEP 2. I didy first mock today, and ooh, it was a whole new ballgame
    Online

    17
    ReputationRep:
    (Original post by Mathemagicien)
    Why would you want to avoid complex numbers?
    I don't mind complex numbers even though it's not my strongest topic, but a lot of the time they're paired up with vectors so I don't do them.
    Things like III 2013 Q6 are fine though .
    Offline

    12
    ReputationRep:
    (Original post by krishdesai7)
    Is it just me, or is STEP 3 a whole order of magnitude tougher than STEP 2. I didy first mock today, and ooh, it was a whole new ballgame
    Afaik they're meant to be of similar difficulty, someone correct me if I'm wrong


    Posted from TSR Mobile
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Would you like to hibernate through the winter months?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.