The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

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

Scroll to see replies

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...
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 :/
The final answer was 3m, you are right

Original post by kateyl
I just got 3m, not one over :s-smilie:
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 :smile:
Was the Value for the constant in c 4
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 !!!
Original post by Hexaneandheels
The final answer was 3m, you are right


yaaaaaassssssss
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! :'''''(
I think you integrated it, I did the same at first :frown:

To differentiate youd take the power of -1 down to -2
That was beautiful
Like 15 6 4 or some thing like that
Original post by neymarFanboy
what was the coordinates of C?
Who got -17/6 ln5 then For K?
Or was K 1/18??
Question 1b this was
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
(edited 8 years ago)
Did anyone else get 9 6 4 for C coordinates
Reply 1434
Avatar for Ual12
Ual12
6
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
What was the cordinate for C?
I had fractions lool
Original post by alikhaliq
Like 15 6 4 or some thing like that


I got this as well :smile:
Was lander for vectors question part 2 equal to 4 and then just sub in??
Yeah it was inversely proportional to the area of a circle where you have to include constant of proportionality
I got 8/3ln5

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you