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# Edexcel A2 C4 Mathematics June 2015 - Official Thread watch

1. (Original post by rayquaza17)
Basically means when you're a pro at integration and you can spot things straight away without doing substitutions.

Don't worry if you can't do this though, I'm a second year at uni and I still can't.
Ah ok!

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2. (Original post by powelsmartin)
Ah ok!

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Makes most integrals very quick and easy. Practice it if u can.

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3. (Original post by physicsmaths)
Makes most integrals very quick and easy. Practice it if u can.

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Is there any specific method or technique to it? I find integration pretty straightforward anyway, it's just following set rules, but this sounds quite interesting.

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4. (Original post by powelsmartin)
Is there any specific method or technique to it? I find integration pretty straightforward anyway, it's just following set rules, but this sounds quite interesting.

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Its just looking at the power and the function. It really does depend though. Have you got the C4 edexcel book? I believe they cover it in there

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5. It is like say you had
x/(x^2+3)
This is in a good form cause if we consider y=1/2(ln(x^2+3)) we find this is the solution. This method can stretch so far and really does help shorten alot of integrals in the papers. This is in C4 edexcel book btw.

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6. +C aswell lol 😁

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8. (Original post by physicsmaths)
It is like say you had
x/(x^2+3)
This is in a good form cause if we consider y=1/2(ln(x^2+3)) we find this is the solution. This method can stretch so far and really does help shorten alot of integrals in the papers. This is in C4 edexcel book btw.

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Ah standard patterns you mean?

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9. I just started my revision
10. Is there still enough time to revise c4? I've just started doing papers

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11. (Original post by lam12)
Is there still enough time to revise c4? I've just started doing papers

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everything has time, you just need to make time. Plus we havent even finished c4 syllabus yet haha but i try do the questions we have learnt so that's okay. You will definitely be ready in time for the exam. ITS ON JUNE 16TH!! haha thats ages away.

good luck
12. Started my c4 revision; I did a couple hours yesterday of partial fractions and 2/3 of chapter 2...hoping to finish parametric integration and binomial stuff today!

Also I'm using the CGP complete revision book instead of the standard textbook, does anyone else use it? The questions for each topic are more varied and not repetitive...

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13. Has anyone had a look at the June 2014 paper yet? (They're up on the website now). Tough paper, right?
14. (Original post by SeanFM)
Has anyone had a look at the June 2014 paper yet? (They're up on the website now). Tough paper, right?
Yep I did it. Yes it is tough conpared to others. I did well in it though.

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15. (Original post by physicsmaths)
Yep I did it. Yes it is tough conpared to others. I did well in it though.

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Blimey, well done
16. (Original post by SeanFM)
Blimey, well done
They have just changed up the style recently, seriously though I won't be surpirsed if our paper is harder.

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17. (Original post by physicsmaths)
They have just changed up the style recently, seriously though I won't be surpirsed if our paper is harder.

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Agreed. I don't think it'll jump as much as it did from 2013 to 2014, but it might still be a bit harder. I actually sat the June 2014 paper and a lot of my classmates struggled with it (Mostly predicted A-C) and so dropped a grade overall... so I think if they made it a lot harder wouldn't be accessible to an average student, so... here's hoping it's about the same difficulty or less.
18. (Original post by SeanFM)
Agreed. I don't think it'll jump as much as it did from 2013 to 2014, but it might still be a bit harder. I actually sat the June 2014 paper and a lot of my classmates struggled with it (Mostly predicted A-C) and so dropped a grade overall... so I think if they made it a lot harder wouldn't be accessible to an average student, so... here's hoping it's about the same difficulty or less.
The vectors have been getting harder aswell as parametrics.

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19. This probably a really easy qu for most people but, can anyone explain why the purple graph here is correct and not the black graph for the sketch of the parametric curve: x = t^3 y = t^2 ?

Thanks

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