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# Edexcel A2 C4 Mathematics June 2016 - Official Thread watch

1. (Original post by kprime2)
I'll be posting solutions to c3 and c4 and some of the other modules the day after the exam.
Will you do it on the paper 'Arsey-style' or just by writing the solutions down without the questions? Thank you btw
2. (Original post by kprime2)
I'll be posting solutions to c3 and c4 and some of the other modules the day after the exam.
Thank you, will you be posting it on here?
3. (Original post by Azzer11)
Will you do it on the paper 'Arsey-style' or just by writing the solutions down without the questions? Thank you btw
He'll do it 'arsey-style' yeah.

(Original post by boyyo)
Thank you, will you be posting it on here?
4. (Original post by kprime2)
I'll be posting solutions to c3 and c4 and some of the other modules the day after the exam.
5. (Original post by physicsmaths)
Unless the papers are easy in which case it can jump up to 71 for A* like it was for S2 last year then it should be A* most of the time.

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Is A* simply A+7? If A and B were 64 and 57 respe, what would be A*?
6. (Original post by kprime2)
I'll be posting solutions to c3 and c4 and some of the other modules the day after the exam.
7. (Original post by Pablo Picasso)
Is A* simply A+7? If A and B were 64 and 57 respe, what would be A*?
First A and E boundaries are set nationally.
Then the middle then A*, A* is the difference between A n B added to the A boundary.
If the A boundary is above 60 then it is the average between the A and 75/75 rounded down if needed.
I have tagged who actually knows it imthe sytem in and out. I might be wrong but this is roughly how it is done.
8. (Original post by kprime2)
I'll be posting solutions to c3 and c4 and some of the other modules the day after the exam.
Yeah, he's doing C34 as well.

(for anybody interested, I'm doing FP2/3)
10. I presume not, but can someone do C3 and C4 as well as C34, and just get the highest mark they achieve?
11. (Original post by lordoftheties)
I presume not, but can someone do C3 and C4 as well as C34, and just get the highest mark they achieve?
No. They are separate qualifications.
12. (Original post by Zacken)
(for anybody interested, I'm doing FP2/3)
King Zacken saving our lives
13. For part c why can't you equation 2t / 3t^2-8 (dy/dx) to 2/5 (gradient found for the line) to find t? I found t=-1 which corresponds to point A and also t=8/3
Attached Images

14. (Original post by Isabella~)
For part c why can't you equation 2t / 3t^2-8 (dy/dx) to 2/5 (gradient found for the line) to find t? I found t=-1 which corresponds to point A and also t=8/3
The line l intersects the curve but they do not necessarily have the same gradients at that point (eg think of the intersection of y = x^2 and y = x+2. They don't have the same gradient where they intersect.
15. when you 2root something you give a +- answer and you don't for 3root, but do you also +- for 4root?
when you 2root something you give a +- answer and you don't for 3root, but do you also +- for 4root?
Yes, anything with an even power you put +-
17. (Original post by edothero)
Yes, anything with an even power you put +-
Even 0?
18. (Original post by edothero)
Yes, anything with an even power you put +-
thanks, trying to upvote but it won't let me
19. (Original post by Middriver)
Even 0?
Can you do ?
thanks, trying to upvote but it won't let me
No worries, glad I could help

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