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    (Original post by Rahee_Ali)
    What did you guys get for the Binomial Expansion last part? I got a negative 4 digit number, can't remember the no. though.
    -1552 or along those lines?
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    (Original post by Jjohnson919)
    -1600 and something (remember exact number)
    I think I got a lower number 😂 crap
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    (Original post by rainbowtwist)
    Where is 1/5 from?
    EDIT: just realised 1/5 is 0.2 lols
    Also I put it was a stretch in y by scale factor 1/25 😂😂
    you are not alone :P
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    Hi everyone just to say ive made a core 2 discussion and unofficial mark scheme thread here where people can see/input answers so we can build an unofficial mark scheme http://www.thestudentroom.co.uk/show...3#post65151203
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    what did everyone get for the sum of the number of terms?
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    (Original post by Rahee_Ali)
    I think I got a lower number 😂 crap
    I got -1648 ??
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    (Original post by voltz)
    I got -1648 ??
    Pretty sure i got the same thing
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    -1648

    (Original post by Jjohnson919)
    -1600 and something (remember exact number)
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    (Original post by SunDun111)
    what did everyone get for the sum of the number of terms?
    The sigma notation from n=4 to 21? I got 90? Did anyone else get that
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    For the binomial I used the c4 method to fully expand whatever the quadratic was - (2+x)^7 ?

    Problem is I completely forgot to times each answer by 2^7 although I did take it out the brackets and write it.

    I then used the indices pairings from both expansions and multiplied any thats powers would add to 10.

    How many marks would I lose?
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    what was the answer for first question part a
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    I got -1552 for the expansion
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    (Original post by Excuse Me!)
    For the binomial I used the c4 method to fully expand whatever the quadratic was - (2+x)^7 ?

    Problem is I completely forgot to times each answer by 2^7 although I did take it out the brackets and write it.

    I then used the indices pairings from both expansions and multiplied any thats powers would add to 10.

    How many marks would I lose?
    i did the same as you! absoutley gutted, i am alwso wondering how much marks i'd get for it
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    (Original post by tsr1807)
    The sigma notation from n=4 to 21? I got 90? Did anyone else get that
    Yeah, I got 90!
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    (Original post by Rahee_Ali)
    What did you guys get for the Binomial Expansion last part? I got a negative 4 digit number, can't remember the no. though.
    I got -1648, I think.
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    (Original post by SunDun111)
    i did the same as you! absoutley gutted, i am alwso wondering how much marks i'd get for it
    Haha, its really annoying. I wrote 2^7 and remember thinking i must do that later.

    If i had to guess i would say 3 marks mabye 4 but most likely 3.

    For, correct terms within expansion, correctly using indice rules to find coefficients, adding coefficients we got to get an answer.

    so hopefully 3
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    How did you all find it in comparison to
    1) core 1
    2) all the past papers for c2??

    I think this was easier than c1 but harder than most c2 papers but easier than June 2012 😂But I think it went ok overall
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    (Original post by RueXO)
    How did you all find it in comparison to
    1) core 1
    2) all the past papers for c2??

    I think this was easier than c1 but harder than most c2 papers but easier than June 2012 😂But I think it went ok overall
    I did surprisingly bad on the C1 paper, and this was much better personally.

    I still messed up quite a few questions like the radian trig one, the arithmetic sum and the area of the sector one.
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    What do we think the grade boundaries will be, usually the average is about 58/59
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    (Original post by ShitAlevels)
    What do we think the grade boundaries will be, usually the average is about 58/59
    I would like to think a little lower, so around 56/57. Was definitely a hard paper.
 
 
 
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