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AQA FP1 Further Pure 1 17th May 2013 Official Thread Watch

1. (Original post by fizzbizz)
But wasn't that triangle flipped in a line too?

Yeah I got 9x^2+108x+72=0 I think

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I don't think so?

Woops, I think I had 24x^2 something....
2. (Original post by Vernish)
The sine to cosine was really weird. I got there in the end, but I think there was a fair amount of "fudging" going on - I split the surd/fraction into two fractions, then dividing them both by the cos(pi/4), which I wouldn't have been able to do if they didn't give the answer, so I dunno if I'll get the marks for that one...

I think for the stretch in the matrix I got
[1 0]
[0 3]

Can anyone remember what quadratic they got for the ones with the roots?
I did the same thing as you, for the sine to cosine one I had to work backwards... :/
I also got that as the matrix but I dont thing it's right tho... cos I think there's also a stretch in the x as well
what did you guys get for the conjugate? did u get something like y=2/3 and x=1/3?
3. (Original post by appleuae123)
I did the same thing as you, for the sine to cosine one I had to work backwards... :/
I also got that as the matrix but I dont thing it's right tho... cos I think there's also a stretch in the x as well
what did you guys get for the conjugate? did u get something like y=2/3 and x=1/3?
I checked it with two of the co-ordinates (and then panicked and thought I should use that time answering the other questions!)
I definitely got thirds for the conjugate.
4. (Original post by Vernish)
I checked it with two of the co-ordinates (and then panicked and thought I should use that time answering the other questions!)
I definitely got thirds for the conjugate.
omg same!
what did u get for the quadratic? I got something 72x^2...
5. (Original post by appleuae123)
omg same!
what did u get for the quadratic? I got something 72x^2...
I think 24x^2 something.
6. you guys make me so nervous!!!! i have definitely failed this exam especially since the grade boundaries are XXXXXtra high!!!!!! whatever
7. this was definitely a very hard paper, hopefully the boundaries will be better than jan 2013.
8. I had 1 hour to sit this exam, I didn't do any past papers. Totally underestimated FP1
9. I checked and rechecked that roots question and I got 9x^2
Got the thirds for the complex thingy majig
Did everyone get 9.859 or thereabouts for the first question?

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10. The factor in front of roots was anything as long as it was divisible by both 8 and 12. Yes the sin question was like what the hell! I really think I m gona have to retake it as it was really hard. Why did they do such a paper? I was getting As throughout every single paper and this was a nightmare. I think the grade boundaries should be 50-53/75. This was nothing like others and nothing like what other boards like MEI and Edexcel do
11. (Original post by fizzbizz)
I checked and rechecked that roots question and I got 9x^2
Got the thirds for the complex thingy majig
Did everyone get 9.859 or thereabouts for the first question?

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was alpha+beta=-3/2 and (alpha*beta)=-3?
because I did it soo many times cos I thought my answer was weird...
12. (Original post by fizzbizz)
I checked and rechecked that roots question and I got 9x^2
Got the thirds for the complex thingy majig
Did everyone get 9.859 or thereabouts for the first question?

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Bummer, that's five marks too.
I got about that I think for Qu1.
13. For the roots question I definitely got 24x^2 because I multiplied through by LCF of 8 and 12.... As they were the denominators?

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14. (Original post by appleuae123)
was alpha+beta=-3/2 and (alpha*beta)=-3?
because I did it soo many times cos I thought my answer was weird...
I got that. Do you remember what you had for the final quadratic?
15. (Original post by Vernish)
I got that. Do you remember what you had for the final quadratic?
72x^2 - 243x + 438 = 0

cos I did the sum of the roots and the product of the roots

was the 2 roots: (alpha+Beta^2/alpha) and (beta=alpha^2/beta)?
16. sorry i mean (beta+alpha^2/beta)
17. (Original post by Vernish)
I think 24x^2 something.
i think i got something like this aswell :/, cant really remember thouhg :9
18. (Original post by Vernish)
I got that. Do you remember what you had for the final quadratic?
I think I may have got a multiple of your answer cos mine is all divisible by 24...
19. (Original post by appleuae123)
I think I may have got a multiple of your answer cos mine is all divisible by 24...
Ah, yes, that would make sense - I think I got -81x too. And perhaps 146?

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