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

    2
    ReputationRep:
    (Original post by Argylesocksrox)
    I don't think there are many super difficult FP4 questions, just pray to your gods that they don't pull an FP3.
    But knowing AQA, they will pull an FP3 for all other modules.
    Offline

    5
    ReputationRep:
    (Original post by student0042)
    But knowing AQA, they will pull an FP3 for all other modules.
    They seem to be quite irritating in terms of consistency, or lack thereof.
    Offline

    2
    ReputationRep:
    (Original post by Argylesocksrox)
    They seem to be quite irritating in terms of consistency, or lack thereof.
    I agree. 100 UMS ranges from 67 to 75, which doesn't seem right. It usually bobs in a range of about 3 numbers.
    Offline

    14
    ReputationRep:
    What is the significance when one of the eigenvalues equals to 1 and why
    Offline

    5
    ReputationRep:
    (Original post by C0balt)
    What is the significance when one of the eigenvalues equals to 1 and why
    Mv=kv where k is an eigenvector defines what eigenvectors are.

    So k=1 is a special case, it means Mv=v (where v is an eigenvector)

    hence for this particular vector, it's not changed by the transformation M, hence it's going to form a line of invariant points under the transformation.

    I may not have been perfectly clear, feel free to ask more.
    Offline

    14
    ReputationRep:
    (Original post by Argylesocksrox)
    Mv=kv where k is an eigenvector defines what eigenvectors are.

    So k=1 is a special case, it means Mv=v (where v is an eigenvector)

    hence for this particular vector, it's not changed by the transformation M, hence it's going to form a line of invariant points under the transformation.

    I may not have been perfectly clear, feel free to ask more.
    Oh my God that makes so much more sense
    Can't remember seeing that in the free textbook, I'd been wondering about it every time I saw it on a paper! Thank you
    Offline

    5
    ReputationRep:
    (Original post by C0balt)
    Oh my God that makes so much more sense
    Can't remember seeing that in the free textbook, I'd been wondering about it every time I saw it on a paper! Thank you
    No problem, there's no real good textbooks for FP4 material that I've found.
    Offline

    0
    ReputationRep:
    Hey, does anybody know how to answer this question... the point A is (2, 9, t) and B is (2t, 5, 3t), first find the modulus (magnitude) of vector A to B, then give the value of t that would make this modulus minimum, then state the value of this minimum. The answer says the value of t= 0.5 and the value of the minimum is 3 root 2 but I have no idea where this comes from????
    Offline

    1
    ReputationRep:
    What is FP4- further pure core 4? I am trying to find a thread for the AQA C2 maths on the 25th, does anybody know where i can find this?
    Offline

    0
    ReputationRep:
    ignore my previous post haha how is everyone feeling about wednesday??
    Offline

    8
    ReputationRep:
    (Original post by hep12345)
    ignore my previous post haha how is everyone feeling about wednesday??
    I'm dreading it! Fp4 is one of my worst, and I was soo prepared for fp3 and that didnt go well, worried the same is going to happen . .
    How are you feeling for it ?
    Offline

    0
    ReputationRep:
    the exact same tbh, I've been petrified after that FP3 paper, really dont know if I'll even pass
    Offline

    14
    ReputationRep:
    (Original post by hep12345)
    the exact same tbh, I've been petrified after that FP3 paper, really dont know if I'll even pass
    At least we now know how the cover page looks like 😅
    Offline

    0
    ReputationRep:
    I've just been advised to go through the spec and look at everything :') not a clue what kind of questions could bob up, if its like FP3 they could ask literally anything!!
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by hep12345)
    I've just been advised to go through the spec and look at everything :' not a clue what kind of questions could bob up, if its like FP3 they could ask literally anything!!
    The fp4 spec is so vague
    Offline

    8
    ReputationRep:
    (Original post by hep12345)
    I've just been advised to go through the spec and look at everything :' not a clue what kind of questions could bob up, if its like FP3 they could ask literally anything!!
    I'm honestly struggling with what to look at though, I've gone through the text book and past papers. But that wasn't enough for fp3 clearly . . . :/
    Offline

    0
    ReputationRep:
    Could anyone answer this?

    What is the matrix representing the transformation that is a rotation through pi radians abotu the line x=0, y+z=0
    Offline

    1
    ReputationRep:
    You may want to try here for extra support with FP4 http://www.mathedup.co.uk/a-level-ta...pure-takeaway/
    Offline

    1
    ReputationRep:
    (Original post by hep12345)
    Hey, does anybody know how to answer this question... the point A is (2, 9, t) and B is (2t, 5, 3t), first find the modulus (magnitude) of vector A to B, then give the value of t that would make this modulus minimum, then state the value of this minimum. The answer says the value of t= 0.5 and the value of the minimum is 3 root 2 but I have no idea where this comes from????
    Find vector AB, and then work out the modulus(pythagorad). You will get a qudaratic that you want to minimize, so find dy/dt to find the minimum. Otherwise, you can complete the square and find the vertex. Sub this value of t back intp the modulus equation to get the minimum value.
    Offline

    0
    ReputationRep:
    For Q6 (c) of the Jan 11 paper, could anyone explain why we take landa to equal 2, I know it's something to do with the direction cosines but what is it?
 
 
 
  • 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
    Are unpaid trial work shifts fair?
  • 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.