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

    13
    ReputationRep:
    (Original post by justinawe)
    Surely it's too easy to be an IMO question? Unless proof by example isn't allowed for some reason.
    I would've thought proof by example wasn't allowed if it's an IMO question.
    Offline

    1
    ReputationRep:
    (Original post by Felix Felicis)
    Ok, that is ridiculous :zomg: This thread regularly goes off track because people throw around AEA/ STEP level questions but this thread is not for IMO-level questions - very few people on here have the prerequisite knowledge/ training to attempt questions of that standard....questions like that belong on the proof is trivial thread
    Oh god I told you that it was an IMO question to just let you think of a better way of solving it than proof by example. It's not actually an IMO question, one of my friend just gave to me to try and answer it so I just posted it here. He did give me the hints that I just told you.
    Offline

    18
    ReputationRep:
    (Original post by Felix Felicis)
    I would've thought proof by example wasn't allowed if it's an IMO question.
    I'd have thought that anything mathematically legitimate would be allowed in the IMO :dontknow:
    Offline

    0
    ReputationRep:
    (Original post by justinawe)
    I was joking :lol: it didn't really offend me!

    I still wouldn't try to even it out because I may have made a silly mistake somewhere in the paper

    Spoiler:
    Show

    While your question is pretty much redundant in real life, to answer the real question - "would you pick 95 or 96 UMS if you had a choice".

    If it made no difference grade-wise, and I had all 100/95 up to then, I'd actually pick 95 for the novelty of having round numbers for all maths modular UMS that might not make much sense but I'm just weird like that I guess

    However, if the streak was already broken, so to speak, I'd pick 96. If you'd asked me before results day for the Jan exams, I'd definitely have picked 96.
    *phew* scared me for a sec
    True True, Imagine ending up with 94 because you try to even it out! Yeah I agree, I like lovely round numbers but if it was broken i'd choose differently
    I got 111 ums in chem so far, aiming for 129 so I get a lovely 240 UMS=A

    (Original post by joostan)
    Well what is \dfrac{d}{dx}\left(x+\frac{1}{2}  \right)?


    Spoiler:
    Show

    Sowwy. :cry2:



    There's no such thing! :eek:
    LOOL, I guess so, but you know what I mean * apologies for my foolishness*
    Offline

    13
    ReputationRep:
    (Original post by justinawe)
    I'd have thought that anything mathematically legitimate would be allowed in the IMO :dontknow:
    Meh, who knows? :dontknow: It may earn you like a point, but I guess to get 7 you'd need the general result :lol:
    Offline

    11
    ReputationRep:
    (Original post by tigerz)
    *phew* scared me for a sec
    True True, Imagine ending up with 94 because you try to even it out! Yeah I agree, I like lovely round numbers but if it was broken i'd choose differently
    I got 111 ums in chem so far, aiming for 129 so I get a lovely 240 UMS=A



    LOOL, I guess so, but you know what I mean * apologies for my foolishness*
    Lol I'm just kidding. There are some horrendous equations out there
    Offline

    18
    ReputationRep:
    (Original post by tigerz)
    *phew* scared me for a sec
    True True, Imagine ending up with 94 because you try to even it out! Yeah I agree, I like lovely round numbers but if it was broken i'd choose differently
    I got 111 ums in chem so far, aiming for 129 so I get a lovely 240 UMS=A
    111 out of? Don't you have to do a practical or something?
    Offline

    18
    ReputationRep:
    (Original post by MAyman12)
    Oh god I told you that it was an IMO question to just let you think of a better way of solving it than proof by example. It's not actually an IMO question, one of my friend just gave to me to try and answer it so I just posted it here. He did give me the hints that I just told you.
    LOL

    I knew it was too easy to be an IMO question :sly:
    • Study Helper
    Offline

    3
    ReputationRep:
    Study Helper
    (Original post by joostan)
    Good luck
    My god I've got a quadratic inside of a quadratic that I need to square root, this seems a lot more challenging than I first anticipated


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by joostan)
    Lol I'm just kidding. There are some horrendous equations out there
    LOOL, everyone's saying that to me today, getting me paranoid for no reason

    (Original post by justinawe)
    111 out of? Don't you have to do a practical or something?
    111/150, I done unit 1 and the practical, I only got 61/90 for the exam in Jan (I spent my time going out/eating instead of prep) and 50/60 for the practical
    Offline

    0
    ReputationRep:
    After all those rounds of exams fp1 seems like a complete pushover, just finished matrices, and previously re-visited coordinate geometry, numerical solutions to equations and complex numbers, it feels like C1.2
    Offline

    1
    ReputationRep:
    how would you integrate x(x^2 +5)^1/2 using the substitution u=x^2 +5
    i know it's integration by substitution, but i keep getting it wrong help
    Offline

    11
    ReputationRep:
    (Original post by MathsNerd1)
    My god I've got a quadratic inside of a quadratic that I need to square root, this seems a lot more challenging than I first anticipated
    Posted from TSR Mobile
    Haha. Go on see what wolfram reckons you're aiming for

    (Original post by pureandmodest)
    how would you integrate x(x^2 +5)^1/2 using the substitution u=x^2 +5
    i know it's integration by substitution, but i keep getting it wrong help
    It's a fairly standard example.
    If you post some working I can spot a mistake

    (Original post by tigerz)
    LOOL, everyone's saying that to me today, getting me paranoid for no reason
    :lol: Exam stress -it's gotta be
    Offline

    18
    ReputationRep:
    (Original post by Felix Felicis)
    Meh, who knows? :dontknow: It may earn you like a point, but I guess to get 7 you'd need the general result :lol:
    They'd have specified in the question if that were the case... if I were a participant, and they didn't give me a 7 for a proof by example, I'd make a formal protest, Sheldon Cooper style
    • TSR Support Team
    • Very Important Poster
    • Welcome Squad
    Offline

    20
    ReputationRep:
    TSR Support Team
    Very Important Poster
    Welcome Squad
    (Original post by Robbie242)
    After all those rounds of exams fp1 seems like a complete pushover, just finished matrices, and previously re-visited coordinate geometry, numerical solutions to equations and complex numbers, it feels like C1.2
    It is a 1 module... Good work!
    Offline

    1
    ReputationRep:
    (Original post by joostan)
    Well what is \dfrac{d}{dx}\left(x+\frac{1}{2}  \right)?


    Spoiler:
    Show

    Sowwy. :cry2:



    There's no such thing! :eek:
    nuh, it's (x+1)/2 not x + 1/2
    does that make a difference?
    Offline

    13
    ReputationRep:
    (Original post by justinawe)
    They'd have specified in the question if that were the case... if I were a participant, and they didn't give me a 7 for a proof by example, I'd make a formal protest, Sheldon Cooper style
    :rofl:
    • Study Helper
    Offline

    3
    ReputationRep:
    Study Helper
    (Original post by joostan)
    Haha. Go on see what wolfram reckons you're aiming for
    I can only imagine it being something horrific really

    Edit: My god that does seem absolutely horrific!

    Posted from TSR Mobile
    Offline

    11
    ReputationRep:
    (Original post by pureandmodest)
    nuh, it's (x+1)/2 not x + 1/2
    does that make a difference?
    A very slight difference: \dfrac{d}{dx}(\frac{x}{2}) = \frac{1}{2} instead of 1.
    (Original post by MathsNerd1)
    I can only imagine it being something horrific really

    Edit: My god that does seem absolutely horrific!

    Posted from TSR Mobile
    ln's squareroots q's, a's, b's galore :lol:
    • TSR Support Team
    • Very Important Poster
    • Welcome Squad
    Offline

    20
    ReputationRep:
    TSR Support Team
    Very Important Poster
    Welcome Squad
    (Original post by pureandmodest)
    nuh, it's (x+1)/2 not x + 1/2
    does that make a difference?
    Just the coefficient of \dfrac{d}{dx}x
 
 
 
  • 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.