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# Official Edexcel C3 Discussion Thread watch

1. Ok so I'm confused with this Jan 07 answer

Sin (X + Pi/3) = 0.5

So therefore:

X + Pi/3 = Pi/6, 5pi/6, 7pi/6, 11pi/6

and:

X = -Pi/6 , pi/2, 5pi/6 , 3pi/2

Unfortunately the answers don't agree with me ?

2. (Original post by Superman_Jr)
So you know how to do all the questions from the text book, past papers, practice papers, elmwood and solomons?
eh, most of them, but i can't be bothered to look for the ones i can't do lol
3. if y=ln 4x
dy/dx = 1/x
?? is this right?
4. (Original post by munaaf)
if y=ln 4x
dy/dx = 1/x
?? is this right?
yepp
5. (Original post by Pheylan)
Maybe not for you. But look at June 09, seriously. It'll never be that easy again. They'll probs make it 10x as hard. And our year is the first year with the A* grade, it's gonna be weird and difficult.
6. (Original post by Get Cape.Wear Cape.Fly.)
It'll never be that easy again. They'll probs make it 10x as hard.
i hope so, lower grade boundaries
7. (Original post by Pheylan)
i hope so, lower grade boundaries
...
8. (Original post by jimber)
if you've done all past papers and scored well your probably ready....go do something fun + relax
ahhhh! I can't do that!
9. (Original post by Get Cape.Wear Cape.Fly.)
...
i'm aiming for 100%
10. (Original post by Get Cape.Wear Cape.Fly.)
Maybe not for you. But look at June 09, seriously. It'll never be that easy again. They'll probs make it 10x as hard. And our year is the first year with the A* grade, it's gonna be weird and difficult.
You'll just screw up if you think of tomorrows paper like that.
11. (Original post by Pheylan)
i'm aiming for 100%
You're not the only one
12. (Original post by Hamoodii)
You'll just screw up if you think of tomorrows paper like that.
Do you think so?
13. I wish I was Pheylan.
FMLLLLLL.
14. (Original post by Get Cape.Wear Cape.Fly.)
ahhhh! I can't do that!
Haa well do whatever works for you! i'm gonna do 1 paper then chill
15. Still have 3 solomon papers to do, but Im feeling very lazy, im overconfident about tommorow to be honest, so someone needs to give me a slap so I can get on with revision.
16. someone help me do this to express e in terms of x
x+3 = e(2x+1)

what are the steps I need t o do
17. (Original post by jaz_jaz)
I wish I was Pheylan.
FMLLLLLL.
Why?
18. (Original post by jaz_jaz)
I wish I was Pheylan.
i get that a lot

Spoiler:
Show
not really
19. (Original post by jimber)
Haa well do whatever works for you! i'm gonna do 1 paper then chill
Panicking works for me
20. Hes done everything and seems to know it all as well!

btw why do you have so many warnings?

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