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# Edexcel A2 C4 Mathematics June 2016 - Official Thread watch

1. Beyond stressed and need the A* and C2 and S1 weren't great as I wanted, nevertheless, I'll give it my best shot, any predictions on what will come up?
BOL!
2. for a range question. The answer was Y is greater than or equal to 1.
i put y>0
is that still correct
4. (Original post by jamessmith15)
for a range question. The answer was Y is greater than or equal to 1.
i put y>0
is that still correct
No it isn't

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Vectors is my b*tch now ;D

These silly arithmetic mistakes always get you and you lose free marks, costed me my 200 UMS in C12 >.<
Do you know where i can find resources containing HARD vector questions
6. (Original post by Lilly1234567890)
Do you know where i can find resources containing HARD vector questions
7. In C3, how would you find the domain of fg(x), given that for f(x): x>0, and for g(x): x e R

Edit: Think I've just realised it's only the domain of g
8. Is there ever any point in using the remainder theorem rather than just doing long division? I dont think ive ever used the remainder theorem yet and I dont think I know how to. Should I learn it?

Edit: meant to post this in the C3 thread
9. https://a086a5a2f39bda93734c56a63fab...%20Edexcel.pdf

Could someone help out in 9b and 9c?
10. (Original post by sabahshahed294)
https://a086a5a2f39bda93734c56a63fab...%20Edexcel.pdf

Could someone help out in 9b and 9c?
for part b you find dy/dx and enter your value for t giving you the gradient of the tangent .Once you have the gradient put the coordinates for B and the gradient into y-y1=m(x-x1) and you should end up with 9x-4y-135

hope that helps
11. (Original post by maruchan)
for part b you find dy/dx and enter your value for t giving you the gradient of the tangent .Once you have the gradient put the coordinates for B and the gradient into y-y1=m(x-x1) and you should end up with 9x-4y-135

hope that helps

Okay. And part c?
12. (Original post by sabahshahed294)
https://a086a5a2f39bda93734c56a63fab...%20Edexcel.pdf

Could someone help out in 9b and 9c?
and for part c just enter x=t^2+2t and y=t^3-9t into 9x-4y-135=0 and solve for t and put that value of t back into x and y hope that helps
13. (Original post by maruchan)
and for part c just enter x=t^2+2t and y=t^3-9t into 9x-4y-135=0 and solve for t and pu that value of t back into x and y
Oh okay! Thank you!
14. (Original post by sabahshahed294)
Oh okay! Thank you!
15. (Original post by maruchan)
Are you appearing for the IAL paper too?
16. (Original post by sabahshahed294)
Oh okay! Thank you!
Is X (105/16, -1215/64)?

Can't find the mark scheme
17. (Original post by sabahshahed294)
Are you appearing for the IAL paper too?
I'm doing the uk paper . Are you doing the paper tomorrow?
18. (Original post by somevirtualguy)
Is X (105/16, -1215/64)?

Can't find the mark scheme
Yeah, they are.
19. (Original post by maruchan)
I'm doing the uk paper . Are you doing the paper tomorrow?
Yes, but the International paper! Good luck though!
20. (Original post by sabahshahed294)
Yes, but the International paper! Good luck though!
Good luck to you too! What topics are you expecting to come up?

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