The Student Room Group

Edexcel June 2016 FP2 UK (and IAL) Solutions

Scroll to see replies

Original post by Zacken
Maybe 74. Probably 75.


Thanks, PRSOM
'Yes, I used α\alpha myself. No marks dropped.'

If I did this but didn't state alpha = arccos(3/4) even though I worked that out in part a, how many marks would I lose?
(edited 7 years ago)
Marks dropped on the last question due to calculation error? (Integration and limits being correct)
Showed adding together and multiplying by 2 etc
@Zacken
Reply 23
Avatar for Zacken
Zacken
OP
22
Original post by edothero
Marks dropped on the last question due to calculation error? (Integration and limits being correct)
Showed adding together and multiplying by 2 etc
@Zacken


Drop 2 max.
Original post by Zacken
Drop 2 max.


Cheers. With generous boundaries I reckon I could be in for 90UMS. Lots of work to do for FP3 if I wanna get an A*.
Will you be doing FP3 too?
Reply 25
Avatar for Zacken
Zacken
OP
22
Original post by edothero
Cheers. With generous boundaries I reckon I could be in for 90UMS. Lots of work to do for FP3 if I wanna get an A*.
Will you be doing FP3 too?


I'm sure you'll bag the A* easy!

Yep, doing FP3 as well. :yes:
Original post by Zacken
I'm sure you'll bag the A* easy!

Yep, doing FP3 as well. :yes:


Thanks bro. Saving lives out here :laugh:
On the argand diagram I drew mine exactly the same as yours, however my teacher ,who is also an examiner, said that I may only get one mark for showing the points and not marking on a scale.
Reply 28
Avatar for Zureepi
Zureepi
For 4ai I moved the qx to the other side and moved dx to the other side, then i integrated 1/p dt and 1/r-qx dx. Also i didnt work out c in the end at all and i ended up with x = r/q -r/(q x e^qt/p x e^qc). Would i get 0 marks because it allowed me to do ii? Also in the end i changed r/q to A and r/e^qc to B so i had x= A + B/e^qt/p.
Cheers man!
In Q1 I somehow managed to get x^2 - 1 on the top not x^2 - 2 (arithmetical error, normally would have picked up on it but I was so stressed about Q4 lol). Other than that, my method was fine. How many marks do you think I'd lose?

Also, in Q4b) I did IBP twice and then got really confused. Though I worked out a value for c (for my wrong equation) in the hopes that I'd get a method mark for working out c (wishful thinking lol). How many marks would I lose if I stopped after IBP twice and worked out a wrong c?

Finally (sorry!), in the last part of the last question, I did the integration right for both, and the correct method, but subbed in the wrong limits for C1, but the correct ones for C2 (the one you had to double - sorry if I have them round the wrong way). How many marks would I lose?

Sorry for the small essay, and thanks for putting this up - it's a real help!
Reply 31
Avatar for Zacken
Zacken
OP
22
Original post by NamelessPersona
On the argand diagram I drew mine exactly the same as yours, however my teacher ,who is also an examiner, said that I may only get one mark for showing the points and not marking on a scale.


I heavily doubt it. It's more like A1 for same lengths of each line and A1 for general quadrant position.

Original post by Zureepi
For 4ai I moved the qx to the other side and moved dx to the other side, then i integrated 1/p dt and 1/r-qx dx. Also i didnt work out c in the end at all and i ended up with x = r/q -r/(q x e^qt/p x e^qc). Would i get 0 marks because it allowed me to do ii? Also in the end i changed r/q to A and r/e^qc to B so i had x= A + B/e^qt/p.


Yeah, sounds like 0 marks for (a) and possibly 1 mark for (b).

Original post by AmarPatel98
Cheers man!


No problem, glad it's useful! :smile:

Original post by blayneandkert
In Q1 I somehow managed to get x^2 - 1 on the top not x^2 - 2 (arithmetical error, normally would have picked up on it but I was so stressed about Q4 lol). Other than that, my method was fine. How many marks do you think I'd lose?


Drop 2/3 marks.

Also, in Q4b) I did IBP twice and then got really confused. Though I worked out a value for c (for my wrong equation) in the hopes that I'd get a method mark for working out c (wishful thinking lol). How many marks would I lose if I stopped after IBP twice and worked out a wrong c?


Probably get 3/4 marks out of 7.

Finally (sorry!), in the last part of the last question, I did the integration right for both, and the correct method, but subbed in the wrong limits for C1, but the correct ones for C2 (the one you had to double - sorry if I have them round the wrong way). How many marks would I lose?


Drop 2 marks. (you had to double both of them btw)

Sorry for the small essay, and thanks for putting this up - it's a real help!


No worries at all, glad it's useful! :smile:
Original post by Zacken
Maybe 74. Probably 75.


got about 53, what grade would that be?
Just realised I didn't work out c on any parts of 4. So annoyed as I specifically read it for question 7 but it said general solution. Guessing I've lost 3-4 marks in total now (unless there's pedantic mark schemes), would that still be 90 UMS?
@Zacken On 4ii i only got to the stage were i had the intergral of E^2xsinx, how many marks do you think i will lose out of 7? Thanks for all your hard work :smile:
Original post by Jackmleitch
@Zacken On 4ii i only got to the stage were i had the intergral of E^2xsinx, how many marks do you think i will lose out of 7? Thanks for all your hard work :smile:


I think you'd get 3/7, one for IF, one for reverse chain rule and one for integrating wrt θ
Original post by Zacken
Hey!

The solutions for the UK Edexcel June 2016 FP2 paper can be found here.

Link: https://drive.google.com/open?id=0B6CGjKYdIeFEQm15cnVSRlh5SkU

Seems like a standard paper overall bar the massively ugly polar coordinates question. Expecting slightly lower boundaries than previous years.

Cheers,
Zacken.


Thank you very much Zacken!

I see for the De Moivre question, you didn't show that z^n - z^-n = 2i sin n theta. I also forgot to do this. Would I lose any marks, as it asked 'using De Moivre's Theorem'

Also, how many marks would I lose on question 4 ii if I used x instead of theta, and forgot to find C (so just gave the general solution). I did the IBP correctly.

Thanks once again!
Reply 37
Avatar for Zacken
Zacken
OP
22
Original post by sunsri101
Thank you very much Zacken!

I see for the De Moivre question, you didn't show that z^n - z^-n = 2i sin n theta. I also forgot to do this. Would I lose any marks, as it asked 'using De Moivre's Theorem'


You won't lose any marks.

Also, how many marks would I lose on question 4 ii if I used x instead of theta, and forgot to find C (so just gave the general solution). I did the IBP correctly.

Thanks once again!


Drop 2 marks.
Original post by Zacken
You won't lose any marks.



Drop 2 marks.


Thanks!
Original post by Zacken
Hey!

The solutions for the UK Edexcel June 2016 FP2 paper can be found here.

Link: https://drive.google.com/open?id=0B6CGjKYdIeFEQm15cnVSRlh5SkU

Seems like a standard paper overall bar the massively ugly polar coordinates question. Expecting slightly lower boundaries than previous years.

Cheers,
Zacken.


Arsey=Zacken=TeEm confirmed ?

Nah, jk. Good work. I thought this paper was quite standard as well, no idea why most people on TSR were losing marks to be honest. 4 b) is just usual c.f./p.i. solution to 1st order ODE and last question came up in 2013 and was even more fiddly than this year's!




Posted from TSR Mobile

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you