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# Edexcel A2 C4 Mathematics June 2015 - Official Thread Watch

1. (Original post by 11234)
thanks for the positive energy
I send it out three times, every half hour...
did it go well?
2. Stupid mistakes

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3. Not bad but messed up question 8b) - ran out of time, also fudged a bit of question 7b) and c).
4. One of the best c4 papers.
5. (Original post by TeeEm)
I send it out three times, every half hour...
did it go well?
Hope so. Just waiting for arsey
6. Not bad at all, one or two things I'm unsure about, notably the integration of the 3^2x term...did anyone end up with some multiple of pi divided by some ln3 term as the final volume?
7. (Original post by jf1994)
Not bad at all, one or two things I'm unsure about, notably the integration of the 3^2x term...did anyone end up with some multiple of pi divided by some ln3 term as the final volume?
13pi/In3
8. I kept getting e^1/4sin2t at the bottom of my differential eqn How were you supposed to get e^1/2sin2t? I got the 6 and the 3 so I have no idea where I went wrong.
9. (Original post by 11234)
13pi/In3
Oh **** I think I forgot to cancel the fraction down
10. (Original post by jf1994)
Oh **** I think I forgot to cancel the fraction down
11. What was the x coordinate of Q?
12. What did you guys get when you subbed in 4 for the number of years?
13. VOTE NOW ON HOW YOU FOUND THIS EXAM!

Note: C4 JUNE 2015 UK paper ONLY!

.
14. (Original post by 11234)
13pi/In3
Same here
15. For the last Q I got:

(26pi-108(pi)ln(3)+27)/ln(3)

I have no idea if that's right lol, anyone got something similar ?
16. (Original post by 11234)
I don't think so but don't you lose an accuracy mark if your final answer has an unsimplified fraction in it?
17. I think I did pretty well! Feel more confident in this than C3... I was abit too stresse out and sleep deprived for C3 so that may be why I messed up...

But I think I did pretty well.... That is until Arsey releases his markscheme LOL
18. (Original post by goonieskellie)
What did you guys get when you subbed in 4 for the number of years?
Around 0.5 years
19. (Original post by jf1994)
Around 0.5 years
0.4 something
20. (Original post by jf1994)
Around 0.5 years
Oh ****, I think I answered in degrees as got around 27? How many marks do you think I'll lose?

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