You are Here: Home >< Maths

# OCR MEI- Mathematics C3- 11/1/08 watch

Announcements
1. So, how did everyone find it?

I found it quite easy compared to past papers.
2. I thought it was.
I was finished in 35mins around as planned, the checked it for 30, and by 5 past 10 I was very bored.

What did u get for question 8, the area, It was 1/4pi - 1/2
3. also, dP/dt was -1.0

and dP/dV was -500/V squared

1 - 4x/(1+6x^2)^2/3

2
(i) fg(x) (x-2)^2, gf(x) x^2 - 2

3
(i) b = 0.47, A = 6250
(ii) £75,557,863.73

4
(ii) dp/dv = -500/v^2

6
(ii) (0.391, -0.346) my x is wrong though
7
(i) dy/dx = (2x)/(x+1) + 2ln(x+1)
(iii) ln2 - 0.5
(iv) 0.

8
(i) strech 1/2 in x-axis
(ii) pi/2
(iii) f(x) = 2, f'(x) = 1/2
(iv) 0 - 2
(v) arcsin(x-1) / 2

Mucked up 2 (iii), 5 (i) and 6(ii) only through silly errors.
5. very easy paper to be honest, i expect grade boundaries to be very high
6. 8 ii) u got half pi
But im sure its 1-4pi - 1/2

y = sin2x + 1
integrating gives -0.5cos2x + x

since the boundaries were 1/4pi and 0

(1/4pi - 0) - (-0.5 x 1)
= 1/4pi + 0.25
7. wasnt it a 1/4 pi + 0.5 i think you must have just typed it wrong above

what value for d2y/dx2 did people get in order to confirm that it was a minimum
8. ye ur right lol
9. can any1 remember the integration by parts question?
I remember subtracting my previous integral
10. I got +4 for the miniumum
11. i do not think i did well im prepared to retake in june
12. sorted i got +4 as well
13. For question
5 i) the proof question, I got when p = 6, the function works out at 63 and 63 is not a prime number
ii) I just used logs to the base 2, to work out p
14. It was an okay paper, I think I messed up q8 though
- somehow I got pi/4 -1/2cos1/2 - 1/2... oh dear..
15. What did any1 get for dP/dt, I think i got -0.1
16. (Original post by andy22may)
very easy paper to be honest, i expect grade boundaries to be very high
I hope it wont be high. How high do you expect it to be? The highest I've seen previously is 60/72 for an A. Do you expect it to be as high?
17. Most of the ppl in my exam were working right until the last minute
18. Even if it is that high, u wud have needed 2 drop 12 marks.
A1, u get 1 mark for a correct answer, so even silly mistakes won't cost u.
U get more marks M1, B1, E1, for ur theory in a question
19. (Original post by iamsuchatwat)
For question
5 i) the proof question, I got when p = 6, the function works out at 63 and 63 is not a prime number
ii) I just used logs to the base 2, to work out p
is 6 a prime number then...no one told me..
20. Extremely easy paper, my answers to the integration questions were: ln2-1/2, +-1/2 and pi/2. Dont want to sound arrogant but I checked over everything and couldnt see anything wrong at all, so I'm expecting 100%.

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:
Updated: November 27, 2008
Today on TSR

### Four simple steps to get an A*

Here's all you have to do

### University open days

• University of East Anglia
All Departments Open 13:00-17:00. Find out more about our diverse range of subject areas and career progression in the Arts & Humanities, Social Sciences, Medicine & Health Sciences, and the Sciences. Postgraduate
Wed, 30 Jan '19
• Aston University
Wed, 30 Jan '19
• Solent University
Sat, 2 Feb '19
Poll
Useful resources

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE