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# OCR MEI FP1 Thread - AM 20th May 2016

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1. (Original post by OscarH98)
I'm pretty sure all of those are incorrect, the determinant was 12, roots were 2 and -1/2. Converges to 2/3 and 6 terms don't cancel.
I got the determinant to be 14
2. That exam made me want to drink bleach
3. (Original post by FP1waspiss)
Yeah I agree, for the 3x3 matrices question did you get the eigenvalues (1/8, 7) and that the solutions form a sheaf?
Yes you're hilarious aren't you, somehow I don't think they'll be testing on eigenvalues in FP1
4. (Original post by Sollyv99)
That exam made me want to drink bleach
I nearly cried
5. (Original post by fp1wassocalm)
x
(Original post by FP1waspiss)
x
Obvious troll is obvious.
6. (Original post by FP1waspiss)
Yeah I agree, for the 3x3 matrices question did you get the eigenvalues (1/8, 7) and that the solutions form a sheaf?
Correct. You don't get marks for 'sheaf' though as it's an outdated term, usually you need to say 'pages of a book' but that's only 4 marks so don't worry
7. was question 9 about the complex roots?
8. (Original post by OscarH98)
I'm pretty sure all of those are incorrect, the determinant was 12, roots were 2 and -1/2. Converges to 2/3 and 6 terms don't cancel.
This is the the ocr MEI thread, I think you may have done just ocr
9. For the inverse of B was it 1/25(A)
10. can someone make an unofficial mark scheme?

Determinant was 14 when p=3. Therefore area of transformed triangle was 168.

Lambda = 3
Mew=25
B^-1 = A/25

A=6
B=51

P=3/2

alpha = 1/2
beta = -2

Sum converges to 2/3

Last sum is 0.008 something to 3 significant figures
12. (Original post by xX-MikeHunt-Xx)
I got the determinant to be 14
same lol. shouldn't det(M) be 14???

but for the second part , the wording confused me so i ended up putting the area as 12. People said the area was 168 but they are probably right tbh lol
13. or was question 7 the one about the roots? please anyone
Anyone get 0.0813 for last question ?
yep
15. No, the last answer is 0.0813 to 3sf.
16. Think question 7 was about the roots, what did you get for alpha x beta?
17. If a dog **** on my exam paper and I handed it in, I still would've got a better mark than i did in that paper.
18. the other of questions on the last page was;
the complex numbers one, the graoh sketching and then the summations one (method of differences) (I can't remember the numbers of questions)
19. (Original post by fp1wassocalm)
This is the the ocr MEI thread, I think you may have done just ocr
i got the same on all except the determinant that I got was 14, and I did the mei fp1 exam
No, the last answer is 0.0813 to 3sf.
I got 0.00813 3.S.F

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