OCR MEI- Mathematics C3- 11/1/08

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Reply 40

temporary_username

How much will some1 earn with a Mathematics and Physics's degree lol

Reply 41

Richie90

also iamsucha****....a lot of my mates got the same as me, and steve34, and his mates...it didnt give them in the question but implied it, and hence there is probably a mark for deduction of limits...so you will prolly have got all marks bar 1.

Reply 42

Android565

north_western_manc

yeah i also got -0.5 although im a tad peeved coz it said what the decrease was and i put -0.5, whihc would mean an increase of 0.5 ARG

It probably depends what form you gave it in, I assume they would accept dP/dt = -1/2 but they might be less kind if you said a decrease of -1/2.

Reply 43

Spire

Android565

I dont think they liked the fact I had a couple of poor AS economics modules, hence the B. The AAA12 is pretty standard, some get AAA11 instead.

What did you get the offer from? (I'll be reading Natsci at selwyn if I meet the offer :biggrin:

)

And sorry to everyone else, I wont spam the thread anymore :wink:

Reply 44

Richie90

but like seriosuly that proof question...p had to be prime...so yeah you will have got an odd result with p=6

Reply 45

temporary_username

Any1 here go 2 a grammar or private school?

*raises hand*

Apparently MEI is popular with them thats y I'm wondering

Reply 48

Spire

iamsuchatwat

Any1 here go 2 a grammar or private school?

Nope, in fact I go to a very dodgy sixth form.

Reply 49

Richie90

mm..mei apparantly stands for Mathematice in Engineering and Industry...although im not sure what makes it more for engineering and industry than a normal exam?

Reply 50

Android565

Steve_34

What did you get the offer from? (I'll be reading Natsci at selwyn if I meet the offer :biggrin:

)

And sorry to everyone else, I wont spam the thread anymore :wink:

Jesus. (its on the first page of the offer's thread :P)

At least I have a decent gap between my first and second offer's, I can afford to miss at least the B12 part and still get my second choice.

Im guessing your offer is a bit lower?

And I'm at a bog standard comprehensive.

Reply 51

temporary_username

I'm prepared 2 concede I got the answer 2 the integral wrong. Hopefully I've just missed 1 or 2 marks. Rly the whole aim is to come out with an A so we'll see

Reply 52

Richie90

it really is the only aim, and hopefully you built up a safety net with AS exams for getting say a B in the module is inconcequential

Reply 53

temporary_username

Its incomprehencible that I get a B, I finished so early, checked it, guess that question I didn't read

Reply 54

Spire

AAA in maths, physics and further maths

Reply 55

Richie90

the problem with finishing a 90min exam so early is that you can easily skim read and miss parts of the question out...that proof one for example, as ive said before, p could only take PRIME number value <11 so when you stick in 6 and get 63, not a prime number-its because its not meant to be part of the series...and with part ii) you were supposed to realise that when p=11, it produces 2048-1=2047 divisible by 23 and 89 (from the random multiplication it asked you to do) or whatever and hence not prime.

Reply 56

Android565

Steve_34

AAA in maths, physics and further maths

I got the impression that you needed a second science for NatSci ?

Reply 57

temporary_username

Ye I got part 2, i remember taking logs

I can't remember the question for part 1, if u can, remind me

Reply 58

Richie90

show that for prime numbers, p, up to 11, that (2^p - 1) is prime...basically proof by exhaustion.

Reply 59

tristanperry

Ah damn... for the part two of the proof I firstly calculated 23 x 89 (as the question asked), but then I put 89 into the formula and got out a long number that ended in 6. Hence I concluded that 2^p - 1 doesn't always produce primes (where p is a prime), because obviously a number ending in a 6 isn't prime.

89 is a prime number, hence should this be an acceptable dis-proof/answer? I didn't take logs or anything?

I thought the paper was very nice though, easy enough. After talking to people after the exam, I think I did better than most. Hence hopefully I'll get an A in it :smile: