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AQA A2 Mathematics Pure Core 4 MPC4 - 17th June 2016

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What do you think 60/75 would be?
for the partial fractions question instead of writing the A and B in fractions I wrote it was -2.5 and 4.5 would i lose marks?
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Avatar for 125_
125_
1
Original post by df97
partial fractions and binomial expansion, i think answers are as follows:
A=-5/2 B=9/2
-1+7x-22/3x^2
not sure on limit, think some people have something like mod x < 4/3


I think the two modulus values were;

|x| < 3/4, |x| < 1/2

which means that |x| < 1/2
i got (e^4)/2
Original post by SunDun111
what was the binomial expanasion answer i got a really messy one ayone else?


Original post by yasaminO_o
Did anyone else get 9/2 e^4 for their gradient at (ln2, 1/2)?
(edited 7 years ago)
Does anyone remember what the fractions were that had to be expanded for binomial? :smile:


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grade boundaries?
Reply 466
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Jm098
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Original post by 1/2(p^2-p)
what was the gradient when you use these to find dy/dx


sorry they were x=(4-4e^2-6t)/4 y=e^3t/3t and gradient 1/2e^4
P was 2/15 or some ****
Original post by hi-zen-berg
Thanks bud. People like you amaze me. For the binomial one when you say 22X^2/3 , does this also mean 22/3*X^2 ?


Yeah, pretty sure its the same
(edited 7 years ago)
Only thing I think I got wrong was the binomial because for some reason I had 3/4 instead of 3/2 on the outside of my second expansion but pretty sure I expanded them right inside and for the other one, how many do you think I lost, I think that's about 3/4 marks because of that.
Original post by hi-zen-berg
SAME
Can we please verify if 1/5 or 13/35?


13/35
Reply 471
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ljb665
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Original post by Matt309
i got (e^4)/2

I got that, I got 0.5e^4
Original post by spmenz123
Attachment not found

It was when t=2/3 right, not when x=2/3
Original post by Parhomus
13/35

13/35
i got identical answers to you except last one because i couldn't do it :frown:
Original post by Adam_98
All the answers I can remember putting. No idea if any of them are correct so feel free to comment:

A= -5/2
B= 9/2

-1+7X-22X^2/3

theta = 99.6° , 260.4°
(Rejecting cos0 = 1 as solutions are outside the range)

-3X +2+9/(whatever the factor was)

9/2ln3-69/2

181grams
330days

P=2/15

R=1/3

S=4/15

CosX=1/5

(2,0,-1)

C = (8,-18,-31)
D = (-4,18,29)

e^4/2

sin3x-3xcos3x = ......+pi



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can anyone remember the first question?? (not answers) tysm
In the parametric gradient would it be ok if i left it with e still inside it and stuff, I mean the question asked only for exact value I don't remember it saying simplest form?
For the last part I think you got |x|< 0.5 and |x| < 3/4 but as 0.5<0.75 you just put |x| < 1/2?
Original post by Matt309
i got (e^4)/2


(e^4)/2 , i got that too- which question was it for lmao?
Original post by AidoPlaydo
For the last part I think you got |x|< 0.5 and |x| < 3/4 but as 0.5<0.75 you just put |x| < 1/2?


thats what i put

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