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

    1
    ReputationRep:
    (Original post by Nurishment)
    It was to x^2 I'm afraid, but they won't penalise you for it.
    Ahh damn but ty, for part c) did you get 5/3?
    Offline

    0
    ReputationRep:
    how do you even integrate 9^x^2 like pls.
    Offline

    2
    ReputationRep:
    (Original post by varshanct95)
    who got 2 + 5/4x - 25/64 x^2 for the first question binomial expansion
    Snap x
    Offline

    4
    ReputationRep:
    (Original post by JulianS96)
    I got the same thing too.
    Something like 12000 -6 = 4000e^1/2sin2t
    Then ln2.9985 = 1/2sin2t
    Therefor 2ln2.9985 = sin2t
    Therefore 2t equals Math Error
    Hopefully we would of got one method mark, but apparently the population was in thousands.
    Offline

    11
    ReputationRep:
    (Original post by JulianS96)
    I got the same thing too.
    Something like 12000 -6 = 4000e^1/2sin2t
    Then ln2.9985 = 1/2sin2t
    Therefor 2ln2.9985 = sin2t
    Therefore 2t equals Math Error
    p was in thousands so you had to put p=4 in! I did this too then realised !

    Posted from TSR Mobile
    Offline

    18
    ReputationRep:
    (Original post by rachelc142)
    :-D congrats dude

    Posted from TSR Mobile
    Cheers, 75 in both C3/4. Whooh with bo pst past papers 😂


    Posted from TSR Mobile
    Online

    12
    ReputationRep:
    (Original post by physicsmaths)
    75/75


    Posted from TSR Mobile
    76/75
    Offline

    2
    ReputationRep:
    I've been **** at C4 all year so I'm really pleased with how this paper went, will check when Arsey does his thing but I reckon I'm on 45-50/75 which should secure my B.
    Offline

    3
    ReputationRep:
    We said that the radius of the cone was 2 when it was actually 9 😢
    Offline

    2
    ReputationRep:
    Paper was Alright not sure its good enough though to compensate for C3 and bring it up to an A*.
    Thank you God for the easy vector questions.
    I noticed P was in thousands in the last minute of the paper. I got a dodgy answer for the final question. When you guys calculate the Volume of the cone 1/3 (pi) r2h is h=9 and r= ln3?
    Offline

    2
    ReputationRep:
    (Original post by talkbiology)
    I got the same
    it was harder than usual in my opinion, the Cartesian equation from the parametrics was tricky, and on the DE question for part c) I didn't realise it was in thousands so couldn't do it! Question 8 was certainly tricky. Comparing my answers with people on here, so far so good, which is a massive relief because on C4 I never know if I've got things right or not!
    Yeah I almost made the mistake for the P = 4000 but quickly corrected it to get the answer. I expect standard grade boundaries but I only need an A for A* overall which I'm confident I got. Hopefully edexcel are kind
    Offline

    18
    ReputationRep:
    (Original post by jf1994)
    76/75
    Damniy


    Posted from TSR Mobile
    Online

    9
    ReputationRep:
    Lost a good 12 marks or so on that.
    Offline

    4
    ReputationRep:
    (Original post by abigail love)
    how do you even integrate 9^x^2 like pls.
    Should of got 32x which can be integrated pretty easily using substation
    Offline

    2
    ReputationRep:
    grade boundaries raw?
    Offline

    15
    ReputationRep:
    (Original post by abigail love)
    how do you even integrate 9^x^2 like pls.
    Do you mean 9^{x^2} ? I would be surprised if they really asked you integrate that..
    Offline

    4
    ReputationRep:
    (Original post by cogito.)
    NO, if you use degrees you will get M0 A0 for final 2 marks because degree is not alternative method but the WRONG method.
    I know it's wrong! But sometimes the mark scheme is lenient in this case. I'm trying to find the example I found earlier.
    Offline

    0
    ReputationRep:
    (Original post by Paraphilos)
    Do you mean 9^{x^2} ?
    yeah
    Offline

    13
    ReputationRep:
    I feel gutted, not because I've done badly but because this paper was a paper where if you did your revision ie all the past papers and Solomon papers at least you should have been able to get 75/75.

    If I had spent my time on c4 instead of spending my time on the gamble that is c3 I would have made an A* this year but there is hope at least
    Offline

    11
    ReputationRep:
    How many marks do people reckon I will lose if I forgot to multiply the volume by pi, on Q8?
 
 
 
  • 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
    Has a teacher ever helped you cheat?
  • 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

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