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Edexcel C4 Monday 25th January 2010 (AM) watch

1. i dont think i remember 7, remind me of it. But for 8)a) i got 1/4[(root3)-1] and for b) you just times that by Pi
2. My 7 was 648 or something like that.
My AY was 21.9ish too.
Can't remember my 8, but i think it was similar to Moa's.
3. If you tell me how to post solutions using some kind of application, ill do it for you.
4. (Original post by keeranj)
does anyonr remember question 7 , 8
area as 229,644,900
5. (Original post by hussam1992)
i dont think i remember 7, remind me of it. But for 8)a) i got 1/4[(root3)-1] and for b) you just times that by Pi
go back a page I posted the paper already -.-'
6. (Original post by ojpowermake)
My 7 was 648 or something like that.
My AY was 21.9ish too.
Can't remember my 8, but i think it was similar to Moa's.
Q.7 was the parametric equations one, if so, then i got the same answers as you and im pretty sure they are right
7. Q2, c), (ii) did anyone get 64ln2 instead of the 4ln2?
8. hmm all i knw is i dropped 8 marks already!
couldnt integrate the last Q even tho it was soo easy. just had to turn it into a sec(squared) nd integrate grrr
and i couldnt do the diffrentiation question. hopefully i got evrythin else right.
9. (Original post by ojpowermake)
Q2, c), (ii) did anyone get 64ln2 instead of the 4ln2?
no. you shouldnt get that; (one question im sure about )
10. are you sure about your Q.2)c)ii) i think i got 1/4[(64ln2)-15] cuz its x squared.
11. (Original post by Anonymous0155)
no. you shouldnt get that; (one question im sure about )
I also got 64ln2 instead of 4ln2 cuz its x squared. Im also pretty sure its right :P
12. btw Anonymous0155 i cant read your answer for 8)b)
13. nvm i can it says 16Pi :P well i think it should be 16Pi times your answer to part a)
14. Hello there, how did you find the c4 paper?

anyone make an unofficial solution paper?

thanks!
15. (Original post by hussam1992)
are you sure about your Q.2)c)ii) i think i got 1/4[(64ln2)-15] cuz its x squared.
yup your right. i got that as well.
16. I think, the answer on the previous page for Q2, C), (i) is spose to be 0.5x^2 lnx - 0.25x^2 + C
17. (Original post by hussam1992)
I couldnt do 8. Moa put up the paper.
18. how many marks will i lose for 8)b) for only multiplying the answer by Pi instead of 16Pi?
19. (Original post by ojpowermake)
I think, the answer on the previous page for Q2, C), (i) is spose to be 0.5x^2 lnx - 0.25x^2 + C
I concur.
20. (Original post by hussam1992)
are you sure about your Q.2)c)ii) i think i got 1/4[(64ln2)-15] cuz its x squared.
yyh thats what i got

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