x Turn on thread page Beta
 You are Here: Home >< Maths

# Edexcel FP2 June 2015 - Official Thread watch

1. (Original post by simonli2575)
I was kinda disappointed that it wasn't very hard.
Spoiler:
Show
1.
-6<x<3 or x>1
x>1

2.
4
2pi/3
4096
+-sqrt(8) & +-sqrt(8)i

3.
3cot(x)-2cos^2(x)cot(x)+Ccosec(x)

5.
(-0.8,0) r=1.2
inside the circle

6.
(4.5a,pi/3)
a^2(9pi/4+81sqrt(3)/16

7.
Coefficients:
3, 8sqrt(3), 40, 176sqrt(3)

8.
x^4(A+Blnx)+1/8lnx+1/16

In the first one I got the same, but minus 3
so -6<x<-3 or x>1
x>1

And in 7 one of the coefficients is 176sqrt(3)/3
because I think 352sqrt3 for the derivative and then you have to divide by 3!=6
2. I'm pretty sure the region is outside the circle
3. (Original post by simonli2575)
I was kinda disappointed that it wasn't very hard.
Spoiler:
Show
1.
-6<x<3 or x>1
x>1

2.
4
2pi/3
4096
+-sqrt(8) & +-sqrt(8)i

3.
3cot(x)-2cos^2(x)cot(x)+Ccosec(x)

5.
(-0.8,0) r=1.2
inside the circle

6.
(4.5a,pi/3)
a^2(9pi/4+81sqrt(3)/16

7.
Coefficients:
3, 8sqrt(3), 40, 176sqrt(3)

8.
x^4(A+Blnx)+1/8lnx+1/16
I didnt get the same for question 3.

4. Can't remember the order but my answers
5. (Original post by jelo)
I didnt get the same for question 3.
I got 1.5sin2x + cotx (cosx)^2 + c cosecx
6. (Original post by jelo)
I didnt get the same for question 3.
Probably different format.
7. (Original post by PandaJules)
In the first one I got the same, but minus 3
so -6<x<-3 or x>1
x>1

And in 7 one of the coefficients is 176sqrt(3)/3
because I think 352sqrt3 for the derivative and then you have to divide by 3!=6
Whoops, I typed in the answer incorrectly.
8. (Original post by DoctorDren)
I'm pretty sure the region is outside the circle
I got inside.

z = 3iw/(1-w)

|z| <= 2

|3iw/(1-w)| <= 2
|3iw| <= 2|1-w|
3|w| <= 2 |-1| |w-1|
3|w| <= 2|w-1|

9(u^2 + v^2) <= 4(u-1)^2 + 4v^2
9u^2 + 9v^2 <= 4u^2 - 8u + 4 + 4v^2
5u^2 + 8u + 5v^2 <= 4

Is anything there wrong?
9. How many marks will i
Lose for putting (0,4/5) instead of (-4/5,0)

Posted from TSR Mobile
10. The only thing i got wrong is a term in the taylor series (last term) how many marks would i lose?

Posted from TSR Mobile
11. I am going for my morning walk ...

based on the first few votes and the comments amongst reputable users of this site it looks that this FP2 boundaries are going to be the highest ever!!

Keep voting at

http://www.thestudentroom.co.uk/show....php?t=3376607
12. (Original post by simonli2575)
Probably different format.
Yeah, sorry, that is correct
13. (Original post by simonli2575)
I was kinda disappointed that it wasn't very hard.
Spoiler:
Show
1.
-6<x<-3 or x>1
x>1

2.
4
2pi/3
4096
+-sqrt(8) & +-sqrt(8)i

3.
3cot(x)-2cos^2(x)cot(x)+Ccosec(x)

5.
(-0.8,0) r=1.2
inside the circle

6.
(4.5a,pi/3)
a^2(9pi/4+81sqrt(3)/16

7.
Coefficients:
3, 8sqrt(3), 40, 176sqrt(3)/3

8.
x^4(A+Blnx)+1/8lnx+1/16
That's what I got!

14. Anyone care to check my answer to 3?
15. Thought i'd done ok till i came on here. messed up q1 and the last part of 7. that's all i can remember, how do you guys know all your answers?
16. (Original post by mrno1324)
I got 1.5sin2x + cotx (cosx)^2 + c cosecx
I got the same answer. Is this correct? I'm seeing other people with completely different answers
17. Did anyone else use factor formulae for the differential equation in Q3 ( i think)
18. yes the integral was sinx, where pretty much a lot of my friends and other people said they got stuck in integrating cos2xsinx, you would use the cos2x expansion integrating after should get you

y= cot (x) - (2/3) cos^2(x) cot (x) + Ccosec(x)
19. Where can I find the questions guys? Has it been uploaded anywhere?

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: March 25, 2016
Today on TSR

### How do I turn down a guy in a club?

What should I do?

### My dad said he's stalked me at uni!

Poll
Useful resources

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE