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# Edexcel C2 20th May 2015 *Official Thread* watch

1. (Original post by Dinaa)
People saying it was easy
EVERY single person i spoke to said it was terrible- even the retakes!
Even my teacher!
(Original post by martynkaa_xo)
That was the most disgusting paper I have ever done. Edexcel screwed us over

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Agree 100% . This was very horrible of them
2. (Original post by 12345678zzz)
checked with my friends and decide to put these down before I forget...

- a= -48, b = -96 (might have mixed them up, can't remember)
- Factorise f(x) = 3(2x+1)(x-4)(x+4)
- common ratio: 8/9, first term = 18, n = 28
- Area of graph = 226 sq. units
- Perimeter = 40.9 cm; Area = 96.7 cm^2
- the minimum cost for the cylinder is 483 pounds
- Angles from tan: pi/9, 4pi/9, 7pi/9; angles from cos: 0. 139, 221 (3 s.f.)

Hope they are correct! Waiting for Arsey's unofficial mark scheme though hahahaaa
Same. Just that I didn't take 3 put of the bracket. Feeling regret a little bit now
3. It wasn't as bad as I thought it may be, but it was definitely harder than some of the Solomon papers. Lots of candidates said they missed questions so I expect lower grade boundaries.
4. that was so hard, i don't know but so many of the question types i had never seen before and im definitely disappointed
5. I found this easier than C1 and easier than the mock paper (we had June 2014 R paper). Despite me doing more exam paper practice on C1, I found this easier because the wording on C1 was really confusing. This was more straight forward if you knew most of the content.
6. (Original post by jf1994)
How did you get minimum cost 483? I got something like 11000 lol...
dC/dr and just substitute r into it
should have found r = 2.92 (3 s.f.)

(Original post by tayloryeah)
How did you get 226?
integrate both sections using the curve, should either did 192+34 or 162+64
7. (Original post by Dieselblue)
there was Q9. I don't think there was a Q11...
you sure? unless i did a seperate exam there were 11 questions in the C2 exam
8. (Original post by nishofficial)
You have to add the integrated areas separately which adds up to 226

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I did do it separately, I got 32 for the first value and 164 for the other
9. I'd say this was an average paper. Definitely not Solomon level but hardly simple. Easier than C1 for sure
10. couldn't have ****ed up more
11. Omg that was so hard! I felt so prepared too. Definitely harder than the Solomon papers imo
12. How many marks will I lose for not using the quadratic formula to find cosx in terms of k and for forgetting to sub r =2.94... Back into the cost formula?
13. (Original post by alevels2k15)
EVERY single person i spoke to said it was terrible- even the retakes!
Even my teacher!

Agree 100% . This was very horrible of them
I got 10 marks/80.
14. (Original post by prepdream)
Same. Just that I didn't take 3 put of the bracket. Feeling regret a little bit now
Nor did I
16. (Original post by sw1998)
I found this easier than C1 and easier than the mock paper (we had June 2014 R paper). Despite me doing more exam paper practice on C1, I found this easier because the wording on C1 was really confusing. This was more straight forward if you knew most of the content.
can't agree more!
17. (Original post by target21859)
How many marks will I lose for not using the quadratic formula to find cosx in terms of k and for forgetting to sub r =2.94... Back into the cost formula?
i did that too. hopefully max 2 marks?.. what was it out of?
18. (Original post by geestarraw)
you sure? unless i did a seperate exam there were 11 questions in the C2 exam
Yeah there were 9 questions..

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20. I got 221 for the integration question

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