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# P3 Revision topic - 1:15pm 9th June - OCR/Edexcel watch

1. (Original post by scottyoneill)
in the binomial expansion the first part of the formula is

n + nx + ...

not

1 + nx + ...

as u put, u are confusing this formula with another one which u use in p2

...i think
Who's the math genius? Me or you.
2. (Original post by scottyoneill)
in the binomial expansion the first part of the formula is

n + nx + ...

not

1 + nx + ...

as u put, u are confusing this formula with another one which u use in p2

...i think
u confuser u scared me!
3. (Original post by tammypotato)
u confuser u scared me!
C'mon, I'm the one who wrote it, and my word is final.
4. cheers Bhaal85 i will give you my rep when i can *mutters about 24 hour rule*
5. (Original post by Bhaal85)
C'mon, I'm the one who wrote it, and my word is final.
i knew u were right bt i started to doubt about myself its nt a good thing 3days b4 exams ...... im gona failllll
6. (Original post by Speciez99)
cheers Bhaal85 i will give you my rep when i can *mutters about 24 hour rule*
Cheers.

Its such a mammoth task creating notes on P3 that aren't too confusing. Is everybody still following?
7. Finished Differentiation.
8. http://www.uk-learning.net/showthrea...884#post777884
how do u do it
9. (Original post by tammypotato)
http://www.uk-learning.net/showthrea...884#post777884
how do u do it
done it.
10. (Original post by Bhaal85)
done it.
i forgt a 1/2 2xsinxcosx + 1 - sin^2x /4

let me check if i gt it right
11. Nice topic. I see I have a rival!
12. (Original post by mik1a)
Nice topic. I see I have a rival!
It feels like its taking forever to finish the notes, oh well, at least its helping me, as I'm doing all this from memory and just some questions lying about.

Besides P3 is a monster compared to P1
13. welll erm sum1 wants to do an S1?
14. If I may make a suggestion:

For integration by parts there is a way to remember where to give priority in selecting u. It goes:

L ogarithms (e.g. lnx)
I ndices (e.g. x^2)
A lgebra (e.g. x)
T rigonometry (e.g. sinx)
E xponentials (e.g. e^x)

Given a product of two functions to integrate by parts, u is ideally the function higher up this priority order.

My teacher uses "latte" (sp!) to remember it.
15. how do u know wot to use for U when doing substitution??
16. (Original post by tammypotato)
how do u know wot to use for U when doing substitution??
Look at the integration section, most of its done now.
17. (Original post by Bhaal85)
Look at the integration section, most of its done now.
great job bhaal keep it up, its all gold
18. (Original post by Bhaal85)
Look at the integration section, most of its done now.
just luked at it thanks
19. This is brilliant......but any chance you could giv some notes on vectors...i h8 that topic...its easy marks but i still end up messing it up....and theres not ne gud notes in th book

thnx m8
20. If you like this thread, rate it.

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