AQA FP1 Further Pure 1 17th May 2013 Official Thread

How many marks was the complex numbers question where the solution were 1/3 and 2/3? And how many marks will i lose if i made 1 mistake during the whole calculation of that question?

Can't remember the amount of marks but it will depend on how marks are set in the mark scheme. It is possible they give a large amount of follow-through marks in which case 1 mistake would only lose 1 mark. Alternatively they may be strict and have accuracy only marks, making prior mistakes affect latter marks. All have to wait and see.

Reply 201

GeneralOJB

When is the paper and mark scheme and examiners report released for teachers?

Reply 202

FPSMaestro

Original post by Maths93

June 2010 68 was an A

Apart from 2010 (which was ridiculously easy btw)

Reply 203

matt242o1552

For the roots I got 24x²-81x-146 = 0 or might of been +81x and +146 but yeh... for first one i think i got 9.859 or so... for matrix i got 1 0 0 3 and then -1/2 sqroot(3)/2 sqroot(3)/2 1/2 and then for final matrix just multiplied T2 by T1... for q2, i got k as -27 for the matrix, ermmm for the roots one i got 1/3 + 2/3i, for q9 i got intersection point at 1,0 as k = 0 or 1, but when k = 1 its asymptote... for series question the end of it linked to the start of it, hence n = 52, and i got my k value as 4 for halfway through the question... for the integration i got -1/2, for the sin(pi/12) = cos(pi/4)(cos(api)+cos(bpi) i remember doing sin(pi/12) / (cos(pi/4)) and got -1+root(3) / 2, hence -1/2+root(3)/2 which gives cos(2/3pi)+cos(1/6pi)... then the trig one with it in degrees i remember getting something like 5+72n ; -21+72n degrees ? what else was there?

(edited 10 years ago)

Reply 204

ThatLithuanian

Original post by matt242o1552

For the roots I got 24x²-81x-146 = 0 or might of been +81x and +146 but yeh... for first one i think i got 9.859 or so... for matrix i got 1 0 0 3 and then -1/2 sqroot(3)/2 sqroot(3)/2 1/2 and then for final matrix just multiplied T2 by T1... for q2, i got k as -27 for the matrix, ermmm for the roots one i got 1/3 + 2/3i, for q9 i got intersection point at 1,0 as k = 0 or 1, but when k = 1 its asymptote... for series question the end of it linked to the start of it, hence n = 52, and i got my k value as 4 for halfway through the question... for the integration i got -1/2, for the sin(pi/12) = cos(pi/4)(cos(api)+cos(bpi) i remember doing sin(pi/12) / (cos(pi/4)) and got -1+root(3) / 2, hence -1/2+root(3)/2 which gives cos(2/3pi)+cos(1/6pi)... what else was there?

Do you remember what we were asked to integrate for the one with infinity and 0 as limits?

Reply 205

matt242o1552

Original post by ThatLithuanian

Do you remember what we were asked to integrate for the one with infinity and 0 as limits?

I think it was x^-4(2x^2-5x) ? so expanded = 2x^-2 - 5x^-3, thus integrated = (2x^-1 / -1 - 5x^-2 / -2) = (-2/x + 5/2x^2) with limits infinity and 1, infinity made it equal 0, hence (0) - (-2/1 + 5/2) = 0 - (1/2) = -1/2

Reply 206

kesupile

2

Why wasn't the value of N 29. ? IF you enter 29 in the equation it goes just over180000.

Can someone explain why that equation didn't have a route of x-iy? I just literally guessed! I said it was a repeated route.

Reply 207

username1105576

Original post by kesupile

Why wasn't the value of N 29. ? IF you enter 29 in the equation it goes just over180000.

Can someone explain why that equation didn't have a route of x-iy? I just literally guessed! I said it was a repeated route.

Please read through the previous few pages, the answers to your questions are given there. :smile:

Or wait till someone uploads the mark scheme :smile:

Reply 208

vietanhnguyen8894

hey guys in the trigonometry i made a very silly mistake by using both degree and 2kpi and in the limit question i made a wrong sign -2/x + 5/2x^2 instead of -2/x - 5/2x^2 and it leads to wrong answer 9/2. So how many marks will i lose for each of the questions ?

Reply 209

furryface12

21

Ahh I made such a mess of this paper :'(

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Reply 210

R4ch3l

Original post by noobslayer

The answer is a couple comments above.

Thanks I think I got that one right! :')

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Reply 211

Sayonara

11

Did anyone finish the paper with time to spare for double checking or not? I'm just wondering. Or, does anyone know someone else that apparently found the paper easy or had plenty of time to double check? Again, just wondering.

Reply 212

Annie_o

Original post by AlanDu

Did anyone finish the paper with time to spare for double checking or not? I'm just wondering. Or, does anyone know someone else that apparently found the paper easy or had plenty of time to double check? Again, just wondering.

I finished with half an hour to spare but only because I knew I needed to go back and check so I rushed the last few questions to made sure I finished. Didn't find it easy though, especially compared to all of the past papers I've done.

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Reply 213

zedd01

Why can p-qi not be a root if the equation and for the roots question, if you wrote an equivalent answer but your co-efficients were just to a different common multiple, will you lose any marks?

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Reply 214

JackLambourne

Im really annoyed at this paper. I've been doing well on all the past papers but this was ridiculous. It's the first time I've not answered every question on a maths paper too.

Reply 215

matt242o1552

Original post by AlanDu

Did anyone finish the paper with time to spare for double checking or not? I'm just wondering. Or, does anyone know someone else that apparently found the paper easy or had plenty of time to double check? Again, just wondering.

Yeh, I finished with about 40minutes, so went over all the questions again checking them all, I found it to be an awkwardly phrased paper... but got there in the end I think, hoping for 95% + :smile:

Reply 216

PrinceUpsb

14

Original post by JackLambourne

Im really annoyed at this paper. I've been doing well on all the past papers but this was ridiculous. It's the first time I've not answered every question on a maths paper too.

I am in the same situation, I was so prepped and this was just...

Reply 217

KBarney

Hi, can someone upload the awnsers or the paper.
Was the Stretch for the Matrix [3 0 0 1]
Also people at my school think the answer for the quadratic equation was something like 16x^2 + 54x +45 = 0

Reply 218

matt242o1552

Original post by KBarney

Hi, can someone upload the awnsers or the paper.
Was the Stretch for the Matrix [3 0 0 1]
Also people at my school think the answer for the quadratic equation was something like 16x^2 + 54x +45 = 0

The matrix stretch was [1 0 0 3] as the x-direction was not stretched, only the y by a scale factor of 3. For the roots one, I believe it was 24x²+81x-146=0

Reply 219

KBarney

Original post by matt242o1552

The matrix stretch was [1 0 0 3] as the x-direction was not stretched, only the y by a scale factor of 3. For the roots one, I believe it was 24x²+81x-146=0

I thought thats what mine shows, doesnt what you put show a stretch in the x direction? Can you explian how you got to that awnser of the roots then?

AQA FP1 Further Pure 1 17th May 2013 Official Thread

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