You are Here: Home >< Maths

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

Announcements Posted on
TSR's new app is coming! Sign up here to try it first >> 17-10-2016
1. (Original post by robzwolf)
I agree, I keep running out of time in maths and FM exams, which is really frustrating because I'm certain I could answer the questions I missed if I had a bit more time to look at and play with them...
exactly... +5 more mins in the core 4 exam would've gotten me +10 marks on a particular question, which would mean a difference of 2 grades...
2. (Original post by JackBarnfield2)
Well either we are both completely wrong or this is a major reassurance! I shall presume we are correct until proven otherwise
3. (Original post by -jordan-)
Use of the standard integral for inverse tanx is on the Core 3 spec though. Shouldn't be unfamiliar to anyone.
Oh is it? I clearly wasn't paying attention when I worked through C3
4. Is there a mark scheme out yet, plus could have got a lot higher is I had more time, hardly enough time to think about some of the questions properly.
5. (Original post by BioStudentx)
I used the quotient rule 2 times, simplified it etc etc. Took a good 15 minutes and ended up with 0.5e^4
I don't know how you could differentiate them bloody parametrics without the quotient rule.
got that too. took me two pages
6. I don't see why anyone would wanna use that formula from FP2 for that question, you can just the sec^2x = tan^2x + 1 to show it
7. (Original post by BioStudentx)
I used the quotient rule 2 times, simplified it etc etc. Took a good 15 minutes and ended up with 0.5e^4
I don't know how you could differentiate them bloody parametrics without the quotient rule.
i used the product rule with (3t)^-1 and it gave me the same answer!
8. (Original post by tanyapotter)
they'll be low but that low?
stats probably 59 for an A.
core 3 probably 54.
core 4 probably 55
9. My chances of going to uni now are as big as grey worms d*ck
10. (Original post by BioStudentx)
I used the quotient rule 2 times, simplified it etc etc. Took a good 15 minutes and ended up with 0.5e^4
I don't know how you could differentiate them bloody parametrics without the quotient rule.
Without the quotient rule? How?
12. (Original post by BioStudentx)
I used the quotient rule 2 times, simplified it etc etc. Took a good 15 minutes and ended up with 0.5e^4
I don't know how you could differentiate them bloody parametrics without the quotient rule.
I only used the quotient rule once - for the y equation.
The x equation could be split into 1/4 - (e^2-6t)/4 or whatever it was, no?
Regardless, I got the same answer of (1/2)e^4
13. (Original post by Salty carpet)
no probs
(Original post by robzwolf)
Without the quotient rule? How?
I did the produce rule by writing it 1/3*t^-1*e^3t cause I hate the quotient rule, too many steps for me lol
14. (Original post by Chickychick)
Does anybody remember how many marks were for each questions roughly in total?
I don't know the names of the topics bc i was literally taught core 4 in three weeks nor do I know if these are in order but...

Q1- Binomial Q - 11 marks (99% sure)
a) Partial fraction 3 marks
b) Binomial Exp 7 marks
c) Valid values of |x| 1 mark

Q2-: Using the double angle formula on 3Cos2(theta) to form and solve that quadratic - 5 Marks (this is definite)

Q3- The one with sinA/sinB/CosA/CosB - 6? - I can't remember the individual parts apart from part a was a 1 marker

Q4- The other partial fractions one 7?
There was the actual partial fraction (3 Marks)
Then the integral/area bit (4 Marks?)

Q5- Exponential/Decay - 11?
a) Showing K was 1 mark
b) Finding the m0 of the similar isotope was 2 marks?
c) Finding the Half Life was 4 marks
*there was another part but i dont remember it*

Q6- Vectors - 15 (this is definite)
a)Acute angle 5 Marks
b) Show they intersect 5 Marks
c) Find C and D 5 Marks

Q7- Parametrics- 10
a) 5 or 6 marks? (Finding gradient at t=2/3)
b) 2 marks (show that x=...)
c) 2 marks (show that the cartesian can be written in the form y=e/(fx)[ln(fx)])

Q8- Differential Equation - 10 (this is definite)
a)3 marks
b) 7 marks

Edit: I don't know why but I seem to think one of the questions was just two 4 markers, the only one that would fit with would be the second partial fraction question...someone correct me if they think I'm wrong and I'll edit
15. I got got the correct value for dy/dx and subbed in correctly but simplified incorrectly... What an idiot.... Do you think I'd lose one, or two marks?
16. Can anyone remember the vectors question? I would like to do it again. Also C3: 66, C4: 72, safe A*?

Posted from TSR Mobile
17. (Original post by JPencil)
Can anyone remember the vectors question? I would like to do it again. Also C3: 66, C4: 72, safe A*?

Posted from TSR Mobile
woah, the highest C4 A* has ever been is 63... youre saying it went up by 9?
and 64 was the A* for last year, so it's definitely lower.
18. (Original post by Salty carpet)
I got got the correct value for dy/dx and subbed in correctly but simplified incorrectly... What an idiot.... Do you think I'd lose one, or two marks?
simplified the algebraic expression incorrectly or simplified numerically incorrectly?
I'd say two for the first case and one for the second case because you'd usually get one for expression and one for final answer
19. (Original post by JPencil)
Can anyone remember the vectors question? I would like to do it again. Also C3: 66, C4: 72, safe A*?
Could someone also collate all the fragmented mark schemes into an "offical unofficial" ms?
Posted from TSR Mobile

Posted from TSR Mobile
20. (Original post by mgill17)
I don't know the names of the topics bc i was literally taught core 4 in three weeks nor do I know if these are in order but...

Q1- Binomial Q - 11 marks (99% sure)
a) Partial fraction 3 marks
b) Binomial Exp 7 marks
c) Valid values of |x| 1 mark

Q2-: Using the double angle formula on 3Cos2(theta) to form and solve that quadratic - 5 Marks (this is definite)

Q3- The one with sinA/sinB/CosA/CosB - 6? - I can't remember the individual parts apart from part a was a 1 marker

Q4- The other partial fractions one 7?
There was the actual partial fraction (3 Marks)
Then the integral/area bit (4 Marks?)

Q5- Exponential/Decay - 11?
a) Showing K was 1 mark
b) Finding the m0 of the similar isotope was 2 marks?
c) Finding the Half Life was 4 marks
*there was another part but i dont remember it*

Q6- Vectors - 15 (this is definite)
a)Acute angle 5 Marks
b) Show they intersect 5 Marks
c) Find C and D 5 Marks

Q7- Parametrics- 10
a) 5 or 6 marks? (Finding gradient at t=2/3)
b) 2 marks (show that x=...)
c) 2 marks (show that the cartesian can be written in the form y=e/(fx)[ln(fx)])

Q8- Differential Equation - 10 (this is definite)
a)3 marks
b) 7 marks
I don't think there were anymore parts for question 5

Posted from TSR Mobile

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: August 17, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### How does exam reform affect you?

From GCSE to A level, it's all changing

Poll
Useful resources