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# Official Edexcel C3 Discussion Thread watch

1. Kameo i belive thats just about it.

Change in sign from postive to neg indicated that the root lays between A and B
2. (Original post by unamed)
do not laugh at my misery. It's not easy being different! (I constantly have to differentiate! < that's my attempt at a joke)
surely you would want to integrate?

Spoiler:
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3. Saying change in sign will get you the mark.

Mentioning the graph is continuous is another point on the MS, but you don't have to say it.
4. Ooooh the fail of maths jokes makes me lol
5. (Original post by Pheylan)
surely you would want to integrate?

Spoiler:
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society won't accept me, so I differentiate till I can not any more!
6. (Original post by Snapshot13)
Ooooh the fail of maths jokes makes me lol
my maths jokes don't fail. they're very funny. (which is why you're loling in the first place! )
7. (Original post by unamed)
society won't accept me, so I differentiate till I can not any more!

differentiate with respect to x
8. this exam is gonna be hard!
9. (Original post by Get Cape.Wear Cape.Fly.)
this exam is gonna be hard!
10. (Original post by Pheylan)

differentiate with respect to x
siny=x

therefore:dx/dy= cosy
(and no dy/dx!)
11. (Original post by Pheylan)
12. (Original post by unamed)
siny=x

therefore:dx/dy= cosy
(and no dy/dx!)
not quite you should try it once you've done C4 differentiation, it's really fun
13. (Original post by Pheylan)
not quite you should try it once you've done C4 differentiation, it's really fun
It's not? Do I do 1/cosy? How come you've already done C4? Do you move at a superspeed?
14. (Original post by unamed)
It's not? Do I do 1/cosy? How come you've already done C4? Do you move at a superspeed?
i got carried away teaching myself, but then the vectors and integration got me so i stopped

15. can someone give me something to do, i've done all the papers and stuff but i feel like i'm wasting time
16. (Original post by Pheylan)
can someone give me something to do, i've done all the papers and stuff but i feel like i'm wasting time
You done the solomans?
17. if you've done all past papers and scored well your probably ready....go do something fun + relax
18. (Original post by kylesawhney)
You done the solomans?
did 'em before starting past papers
(Original post by jimber)
if you've done all past papers and scored well your probably ready....go do something fun + relax
but i have C3 tomorrow
19. (Original post by Pheylan)
did 'em before starting past papers

but i have C3 tomorrow
So you know how to do all the questions from the text book, past papers, practice papers, elmwood and solomons?
20. (Original post by Pheylan)
did 'em before starting past papers

but i have C3 tomorrow
To be fair if you've done all solomon papers well, your proabably gonna smash the paper regardless....i wish i'd done all that prep!

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