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# OCR C2 - 15th January watch

1. (Original post by Haruhi)
N was a quadratic with no constant at the end o.o
it was something like
7N^2 + 15N = 2512
N(7+15N) = 2512
N= 2512
N= 167 o_o

That sequence was an arithmetic progression...right? please tell me yes.

I hope so
Attached Files
2. Question 8.docx (10.3 KB, 98 views)
3. anyone know what the grade boundaries are most likely to be like?
4. I was doing Soloman papers as mock exams, I found the real thing so much easier.

The only question that stumped me was the Sigma notations of 2N and N
I couldn't get to a correct integer solution from the quadratic equation
5. I have created a new thread and posted all the answers. The reason why I didn't post them in here was because all the OCR MEI people might get confused and pile in here and I wanted a clear thread title.
6. (Original post by Mr M)
I have created a new thread and posted all the answers. The reason why I didn't post them in here was because all the OCR MEI people might get confused and pile in here and I wanted a clear thread title.
7. (Original post by crazyness)
http://www.thestudentroom.co.uk/show....php?t=1152450
8. This wasn't the C2 OCR MEI Test right? (ref: 4752)
i got N=16
area between curves= 16/3
coefficient of w^6= 35/256 or something around that but i think that might be wrong
Yep, I got the exact same as this. So did a lot of people who I talked to after the exam. Thought the rest of exam was pretty easy
10. (Original post by Ra*)
This wasn't the C2 OCR MEI Test right? (ref: 4752)
No. This is what I meant about confusion with the MEI people!
11. Cheers.
12. I think N was 16 because i checked it, and area between two curves was 16/3 i got the coefficient to be -35/4

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