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

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1. What do you think 60/75 would be?
2. 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?
3. (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
4. 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)?
5. Does anyone remember what the fractions were that had to be expanded for binomial?

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7. (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
8. P was 2/15 or some ****
9. (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
10. 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.
11. (Original post by hi-zen-berg)
SAME
Can we please verify if 1/5 or 13/35?
13/35
12. (Original post by Matt309)
i got (e^4)/2
I got that, I got 0.5e^4
13. It was when t=2/3 right, not when x=2/3
14. (Original post by Parhomus)
13/35
13/35
15. i got identical answers to you except last one because i couldn't do it
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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16. can anyone remember the first question?? (not answers) tysm
17. 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?
18. 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?
19. (Original post by Matt309)
i got (e^4)/2
(e^4)/2 , i got that too- which question was it for lmao?
20. (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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Updated: August 17, 2016
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