Join TSR now and get all your revision questions answeredSign up now

AQA A2 Mathematics MPC4 Core 4 - 9th June 2015 [Discussion & unofficial markscheme] Watch

    Offline

    2
    ReputationRep:
    (Original post by Chloe<3)
    Did anyone get the +c in the differential equation of 8a to be -4??


    Posted from TSR Mobile
    Er, no I got it to be 1. I checked my answer afterwards (after I'd found x in terms of t) and it worked out...
    Offline

    2
    ReputationRep:
    How many marks do I lose if I incorrectly integrated (1/5)(t+1)^-2 to be -(t+1)^-1 (I forgot to add in the factor of 1/5) But then carried on with correct working, but obviously to get the wrong answer :/
    Offline

    2
    ReputationRep:
    The final answer was 3m, you are right

    (Original post by kateyl)
    I just got 3m, not one over
    Offline

    2
    ReputationRep:
    (Original post by AlexV63)
    Unofficial mark scheme anyone? :-)
    We have agreed that CD223 is writing the mark scheme, it should be up within the next hour or so
    Offline

    2
    ReputationRep:
    Was the Value for the constant in c 4
    Offline

    2
    ReputationRep:
    (Original post by jjsnyder)
    How many marks do I lose if I incorrectly integrated (1/5)(t+1)^-2 to be -(t+1)^-1 (I forgot to add in the factor of 1/5) But then carried on with correct working, but obviously to get the wrong answer :/

    I did exactly this !!!
    Offline

    3
    ReputationRep:
    (Original post by Hexaneandheels)
    The final answer was 3m, you are right
    yaaaaaassssssss
    Offline

    2
    ReputationRep:
    (Original post by Freyk2)
    I did exactly this !!!
    Saw it at the last minute and did not have time to change it :'( Think I would have done well if it wasn't for that as well! :'''''(
    Offline

    0
    ReputationRep:
    I think you integrated it, I did the same at first

    To differentiate youd take the power of -1 down to -2
    Offline

    2
    ReputationRep:
    That was beautiful
    Offline

    0
    ReputationRep:
    Like 15 6 4 or some thing like that
    (Original post by neymarFanboy)
    what was the coordinates of C?
    Offline

    0
    ReputationRep:
    Who got -17/6 ln5 then For K?
    Or was K 1/18??
    Question 1b this was
    Offline

    2
    ReputationRep:
    (Original post by Harrylad)
    Who got -17/6 ln5 then For K?
    Or was K 1/18??
    Question 1b this was
    Got k=8/3, was pretty sure that one was correct
    Offline

    3
    ReputationRep:
    Did anyone else get 9 6 4 for C coordinates
    Offline

    2
    ReputationRep:
    (Original post by Harrylad)
    Who got -17/6 ln5 then For K?
    Or was K 1/18??
    Question 1b this was
    i got 8/3 ln 5
    Offline

    1
    ReputationRep:
    What was the cordinate for C?
    I had fractions lool
    Offline

    2
    ReputationRep:
    (Original post by alikhaliq)
    Like 15 6 4 or some thing like that
    I got this as well
    Offline

    0
    ReputationRep:
    Was lander for vectors question part 2 equal to 4 and then just sub in??
    Offline

    0
    ReputationRep:
    Yeah it was inversely proportional to the area of a circle where you have to include constant of proportionality
    Offline

    1
    ReputationRep:
    I got 8/3ln5
 
 
 
Poll
If you won £30,000, which of these would you spend it on?

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.