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

AQA A Level Maths Core 2 - 25th May 2016 [Exam Discussion] Watch

    Offline

    2
    ReputationRep:
    (Original post by smitherito)
    How was the expansion question done , when expanded I got x^10 to be like -18144 !
    You just had to think in your head of what coefficiants with there particular power would multiply (or addition of powers together) to get x^10 so you'd have x^5 and X^5, x^6 and x^4 and so on
    Offline

    1
    ReputationRep:
    (Original post by brodingoson)
    You just had to think in your head of what coefficiants with there particular power would multiply (or addition of powers together) to get x^10 so you'd have x^5 and X^5, x^6 and x^4 and so on
    I think I multiplied them the x^2 and x^5 coefficients . Should I have added. My indices rules are shaky
    Offline

    2
    ReputationRep:
    (Original post by smitherito)
    I think I multiplied them the x^2 and x^5 coefficients . Should I have added. My indices rules are shaky
    Yes, e.g. (x^5) x (x^5) = x^10,

    When you multiply numbers, you add the power, (X^2) x (X^5) = x^7

    If you multiplied the powers, that will explain you big number
    Don't worry about it though
    Offline

    14
    ReputationRep:
    (Original post by Chickenslayer69)
    Yes - for 0.5^x when x is lower, the value increases, so it's the other way around.

    You will get 1 mark for stating the y intercept, yes.
    the graph is supposed to be y=(0.2)^x <---- same as that if you type it into your graphical calculator , you dont have to reflect it ?
    Offline

    3
    ReputationRep:
    (Original post by brodingoson)
    You just had to think in your head of what coefficiants with there particular power would multiply (or addition of powers together) to get x^10 so you'd have x^5 and X^5, x^6 and x^4 and so on
    **** i did 5 and 2... i've messed up ganna drop maths
    Offline

    3
    ReputationRep:
    (Original post by brodingoson)
    Yes, e.g. (x^5) x (x^5) = x^10,

    When you multiply numbers, you add the power, (X^2) x (X^5) = x^7

    If you multiplied the powers, that will explain you big number
    Don't worry about it though
    i did this too, will i get any marks?
    Offline

    2
    ReputationRep:
    (Original post by clairebear101)
    **** i did 5 and 2... i've messed up ganna drop maths
    Quite a lot of people find the paper challenging so expect lower grade boundaries than normal, dont worry, just try to ace your last module your doing in maths!
    Offline

    2
    ReputationRep:
    (Original post by clairebear101)
    i did this too, will i get any marks?
    As in you do add the powers together to get 10?
    Offline

    14
    ReputationRep:
    i think i failed c2 tbh, maybe a D ? if im lucky

    lets say if i get;
    'C' in c1
    'D' in c2
    what will i have to get in s1 to get a B (and is it even still possible for me to get a B ? LMAO )

    I mean B as an overall grade in AS maths
    Offline

    3
    ReputationRep:
    (Original post by brodingoson)
    As in you do add the powers together to get 10?
    i made a mistake and did the powers of 5 and 2
    Offline

    3
    ReputationRep:
    (Original post by brodingoson)
    Quite a lot of people find the paper challenging so expect lower grade boundaries than normal, dont worry, just try to ace your last module your doing in maths!
    what do u think will be an A?
    Offline

    2
    ReputationRep:
    (Original post by clairebear101)
    i made a mistake and did the powers of 5 and 2
    If you tried to multiply coefficients together and used the right numbers for both the binomial expansions, you'll get at least 2 method marks out of 5 but all depends on how harsh the mark scheme is
    Offline

    2
    ReputationRep:
    (Original post by clairebear101)
    what do u think will be an A?
    Depends but last years paper was 58 and i found this years a lot more challenging so around 56-58, but it all depends on how well people have done
    Offline

    2
    ReputationRep:
    (Original post by brodingoson)
    Yes, e.g. (x^5) x (x^5) = x^10,

    When you multiply numbers, you add the power, (X^2) x (X^5) = x^7

    If you multiplied the powers, that will explain you big number
    Don't worry about it though
    on that question, i expanded it all out but i did it the n(n-1) method, and i forgot to multiply out all my numbers by 2^,7 instead just 2, so i got a stupiud answer could i get any marks at all?
    Offline

    2
    ReputationRep:
    (Original post by money-for-all)
    i think i failed c2 tbh, maybe a D ? if im lucky

    lets say if i get;
    'C' in c1
    'D' in c2
    what will i have to get in s1 to get a B (and is it even still possible for me to get a B ? LMAO )

    I mean B as an overall grade in AS maths
    You would need a very solid A but it is doable, grade boundaries will be lower this year
    Offline

    14
    ReputationRep:
    (Original post by brodingoson)
    You would need a very solid A but it is doable, grade boundaries will be lower this year

    so its possible ?

    i freaking love you !!!!
    thanks, just what i needed to hear (or read xD)

    so its definatly stil possible to get a B overall , provided i get a solid A in S1 ?
    Offline

    2
    ReputationRep:
    (Original post by SunDun111)
    on that question, i expanded it all out but i did it the n(n-1) method, and i forgot to multiply out all my numbers by 2^,7 instead just 2, so i got a stupiud answer could i get any marks at all?
    Really not sure because if don't know what your working is like and it all depends on the examiner and if the mark scheme is kind or not

    they;ll accept multiple ways of finding the answer but i think the marker only looks at the other ways if you had the right answer at the end
    Offline

    2
    ReputationRep:
    (Original post by money-for-all)
    so its possible ?

    i freaking love you !!!!
    thanks, just what i needed to hear (or read xD)

    so its definatly stil possible to get a B overall , provided i get a solid A in S1 ?
    Hahah and yes, you need 210/300 ums to get a B so FOR EXAMPLE if you got 65 in C1 which is a C and 55 in C2 which is a D, they add up to 120 ums and then you need 90 in S1 to get you to 210 UMS which is a B
    Offline

    7
    ReputationRep:
    (Original post by money-for-all)
    i think i failed c2 tbh, maybe a D ? if im lucky

    lets say if i get;
    'C' in c1
    'D' in c2
    what will i have to get in s1 to get a B (and is it even still possible for me to get a B ? LMAO )

    I mean B as an overall grade in AS maths
    If you got a mid C and a mid D, you would need 90UMS on stats to get a B.
    Offline

    14
    ReputationRep:
    (Original post by brodingoson)
    Hahah and yes, you need 210/300 ums to get a B so FOR EXAMPLE if you got 65 in C1 which is a C and 55 in C2 which is a D, they add up to 120 ums and then you need 90 in S1 to get you to 210 UMS which is a B
    THANKS SOO MUCH !!!!

    you my friend are a star, may you do well in all your upcoming exams, and good luck !!!!
 
 
 
  • 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
    Brussels sprouts
  • 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.