C4 CCEA May 2015

I tried 8b and done it completely wrong, then redone it on extra paper and got the correct answer and handed in both papers although I forgot to score out my first attempt, what will happen?

I did this last year and unfortunately was resitting I believe because of it. I think they used to me more lenient but are clamping down on it. This is from the chief examiner report from the may 2010 paper.

'Candidates have been encouraged not to cross out any work; examiners will mark each attemptand award marks for the best attempt. However, the examiners have noted that somecandidates are offering multiple choice answers and expect the examiner to pick the correctsolution. For example in Q7(a) some candidates drew both y = sin−1x and y = cosec x as theywere unsure which was the correct graph. In this case the examiner marked the first solutionand ignored the second.'

Hope it works out for you as I believe its unfair when you are showing that you can clearly do the question (reason we do exams).

Has anyone got answers (and questions) from the c3 paper?

I rewrite my answers (without the working out) on my question booklet so I can discuss the answers with other people in my class and stuff, and most them here.

I liked the paper so I THINK I did well but I don't know.

1) 36.8 degrees
2) 8/3
3)a) 1/2
3)b) x-4y+7=0
4) 34.7 (3sf)
5)a) Drew the graph but didn't include a domain (I don't know if this is a problem or not)
5)b) 37.8, 142, 218, 332 (all to 3sf)
6)i) [5pi(a^3)]/3 (Pretty sure I got this wrong)
6)ii) a=12 (I imagine I will get follow through marks here)
7)i) sketched the graph and marked the point (0,0.5)
7)ii) x=-2 y=0
7)iii) f(x)<0.5 (I should have included 0<f(x))
7)iv) (x-1)/(2x-1)
7)v) (x-1)/(2x-1) (I'm pretty sure this is right, but for 4 marks who on Earth came up with that! I thought I was crazy when I first got this answer)
8)a) [(2x^3)/3]lnx-[(2x^3)/9]+c
8)b) (16-7root2)/120 (I know that this is wrong but I actually copied out my method for this and I am pretty sure it's right and I have made a mistake somewhere else - that said I know other people with the exact same answer, but I am still doubtful)

Thanks. I genuinely forgot to cross out the first attempt as was rushed for time doing it correctly, hopefully the fact it was on additional paper will help as there would be no point giving it in otherwise

Hope it works out for you as I believe its unfair when you are showing that you can clearly do the question (reason we do exams).

Thanks please do