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# P5 OCR tomorrow watch

1. Hey, does anyone else have OCR p5 exam tomorrow? anyone have any good revision notes or anything? questions?
2. I have OCR P5 tomorrow but I don't have any good revision notes...or any questions really... but I'd do my best to answer any questions. Either way, good luck to everyone who's doing it!
3. I have it tomorrow too ! dreading it

i only have past papers and my text book...........manic cramming going on!
4. I have it! I can't do:
- Surface areas of revolution
- errors of any kind
- Draw hyperbolic graphs- (Is there anywhere I can find these so that I can quickly learn them tonight?)
But it'll be ok....won't it??? x
5. (Original post by undercover-ange)
I have it! I can't do:
- Surface areas of revolution
- errors of any kind
- Draw hyperbolic graphs- (Is there anywhere I can find these so that I can quickly learn them tonight?)
But it'll be ok....won't it??? x
im not sure if its the same but surfave areas are in the formula book,(well my one ) but i just think its the same as arc length but with a 2 pi and a y in

surface area = 2pi ∫y (arc length) dx

and for hyperbolic graphs i just graphical calculator it ... but i just got it so im kinda showing off
6. (Original post by undercover-ange)
I have it! I can't do:
- Surface areas of revolution
- errors of any kind
- Draw hyperbolic graphs- (Is there anywhere I can find these so that I can quickly learn them tonight?)
But it'll be ok....won't it??? x

Yeah surface areas of revolution are straight from the forumla book, you don't need to know any of the thinking behind the expressions, it's basically an exercise in integration.

I've not seen much on drawing of graphs..

Errors! I hate errors! I hate whoever modified Euler's method...it was fine how it was!
7. For the sinhx and coshx graphs- think of them as the "average" of ex and ±e-x graphs- plot each in your head and you can work it out pretty easily.
(coshx=1/2(ex+e-x) and sinhx=1/2(ex-e-x))

I don't think those graphs come up very often though.
8. (Original post by amo1)
im not sure if its the same but surfave areas are in the formula book,(well my one ) but i just think its the same as arc length but with a 2 pi and a y in

surface area = 2pi ∫y (arc length) dx

and for hyperbolic graphs i just graphical calculator it ... but i just got it so im kinda showing off
Ahhhh of course!! That's what my graphical calculator's for!!! It doesn't have hyperbolic functions in it but I can go back to es! Thanks for reminding me.....xxx

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