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# Edexcel A2 C4 Mathematics June 2015 - Official Thread watch

1. (Original post by ahb123)
Considering I taught myself the subject I shouldn't have to do every single past paper to uncover that. It's simple, if edexcel are going to ask a question on something it should be included in the textbook
Well that's your own fault for not doing enough papers.
2. (Original post by xKay)
Well that's your own fault for not doing enough papers.
I did about 10 papers actually just didn't happen to do that one. It's not even worth my time talking to you 👋 👋
3. (Original post by Johann von Gauss)
They shouldn't have to include examples of all possible questions in their textbook.

As for integrating a constant a raised to the power x, it is simply e^(x ln a), and surely you know how to integrate that?!
I know how to do e^x but just not a constant ^x not worth worrying about it now, what's done is done
4. (Original post by ahb123)
I did about 10 papers actually just didn't happen to do that one. It's not even worth my time talking to you 👋 👋
Dude, the spec even says you need to know how to integrate it so stop whining.
5. (Original post by xKay)
Dude, the spec even says you need to know how to integrate it so stop whining.
Whining? Are you kidding me? I'm merely stating that I didn't realise that I needed to know how to integrate that. I've taught myself the whole A2 module so I'm bound to miss something. Some people are just too nasty for their own good
6. (Original post by Johann von Gauss)
I don't think I was clear on that: 3^x = e^(x ln 3), and that is easy to integrate.

As it happens, I didn't chance upon any past papers where we were asked to do this either.
Having taught myself I wasn't aware that 3^x is the same e^(x on 3) but at least I know now It's so typical I did loads of past papers but just not the one that had that in haha good luck for results day!
7. Will62 in c4
43 in c3
65 in m1
Be enough for 210 this year?
8. (Original post by qwertymed)
Will62 in c4
43 in c3
65 in m1
Be enough for 210 this year?
almost certainly
( more like 220 - 225 UMS)
Attached Images

9. (Original post by TeeEm)
almost certainly
( more like 220 - 225 UMS)
Thanks, that's a relief
10. If I get wrong signs for one question where the integral has wrong signs could I get 1/3.
11. If I get wrong signs for one question where the integral has wrong signs could I get 1/3.
.
12. (Original post by ahb123)
Having taught myself I wasn't aware that 3^x is the same e^(x on 3) but at least I know now It's so typical I did loads of past papers but just not the one that had that in haha good luck for results day!
Why didn't you do every past paper in the cucurrent spec?
13. (Original post by Rubik-Cube)
Why didn't you do every past paper in the cucurrent spec?

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14. (Original post by ahb123)
Considering I taught myself the subject I shouldn't have to do every single past paper to uncover that. It's simple, if edexcel are going to ask a question on something it should be included in the textbook
It is a very simple substitution, which is covered in the textbook, or you could have reverse chain ruled it
15. Will 62-64 in c3 and 67-69 in c4 get me an A* overall in maths?
16. Using Arseys predictions for the A* boundaries then it probably could yeah. It will be borderline I'm afraid
17. (Original post by Calum511)
Using Arseys predictions for the A* boundaries then it probably could yeah. It will be borderline I'm afraid
Hi what are arseys predictions for c3 and c4 for the A* and A? Thank you and good luck for your exams

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18. Could 69 in C3 and 66 in C4 be an A* overall?
19. (Original post by sunsri101)
Could 69 in C3 and 66 in C4 be an A* overall?
I'd put money on it
20. (Original post by 13 1 20 8 42)
I'd put money on it
bet you 1p it's not

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