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# Edexcel A2 C4 Mathematics June 2015 - Official Thread watch

1. Requirements for an A* in A2 edexcel maths?
2. (Original post by Neilg99)
**** was the area of the ln2 question 32ln2 - 12? Ffs
I got a squared ln 2 function in my answer, so I think i ****ed that one up
3. omg I didn't remember to put p as 4 instead of 4000 so I kept redoing the last part of question 7 as I kept getting a maths error so I ended up not doing question 8 that's my A* gone
4. (Original post by Neilg99)
**** was the area of the ln2 question 32ln2 - 12? Ffs
yes
5. (Original post by unreasonableman)
Didn't you have to use tan rather than sin? I didn't think the hypotenuse was involved. Got 8. something, although I am probably wrong.
There are a couple of way of doing it but my way involved sin. You may have used tan or sin depending on which method you employed.
6. (Original post by joe1545)
Actually I remember, also, doe 5/2t differentiate, to 10ln2t ?
It is -5/2t^2
7. (Original post by unreasonableman)
Didn't you have to use tan rather than sin? I didn't think the hypotenuse was involved. Got 8. something, although I am probably wrong.
I did that :/ does the perpendicular bit have to be FROM line 2 or is it from line one of you get what I mean
8. (Original post by fgjhtfktd)
Requirements for an A* in A2 maths?
90% average in C3 and C4, in UMS terms
9. (Original post by phoenixsilver)
Yeah, that's what I got.
I actually tried doing it in degrees as well, I got 27 years. I then decided that nobody would carry out a wildlife study for 27 years so I banked on my radians answer LOL.
Thats exactly what my thought process was lmao
10. (Original post by Datta10)
Is integrating 3^2x, 3^x/ln3 ?

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no 3^2x/2ln3
11. (Original post by sofied)
I got 60.5 pretty sure thats wrong now as everyone else thinks 31 :/
I got 60.5
12. I saw the last question and thought about John McEnroe's famous quote I do FM too (and I will get A* based on how I've done) and that question screwed me.

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13. (Original post by Yua)
yes
Good
14. Tbh just hoping for method marks, could barely finish much of the integration.... some nice questions though I'm hoping around 50 marks will be a B
15. well goodbye uni
16. (Original post by Datta10)
Is integrating 3^2x, 3^x/ln3 ?

Posted from TSR Mobile
9^x/ln9 which is 3^2x/2ln3
17. Guys, what was the x coordinate , i got 2- 1/ln3
18. (Original post by joe1545)
Actually I remember, also, doe 5/2t differentiate, to 10ln2t ?
No you got your integration and differentiation the wrong way round

LnX differentiates to 1/x not the other way round
19. (Original post by fgjhtfktd)
Requirements for an A* in A2 maths?
90+ UMS average of C3, C4 UMS marks. 80+ UMS average of all your Maths modules combined.
20. (Original post by NJ4769)
I got exactly the same
Me too! Me and my mates all got exactly the same answers for everything apart from 8b. Have to wait for Arsey...

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