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# AQA Core 3 Exam May 31 2012 Official Discussion Tweet

Maths exam discussion - share revision tips in preparation for GCSE, A Level and other maths exams and discuss how they went afterwards.

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1. AQA Core 3 Exam May 31 2012 Official Discussion
Hey all -

Exam is in a couple of days and saw no thread for it. This is a resit for me - last chance!
2. Re: AQA Core 3 Exam May 31 2012 Official Discussion
I'm in the same boat. Hope it goes better than January, that paper was terrifying.
3. Re: AQA Core 3 Exam May 31 2012 Official Discussion
They couldn't possibly make it any harder than that, could they? :
4. Re: AQA Core 3 Exam May 31 2012 Official Discussion
I'm resitting it too. Can't be any worse than January, especially with me doing FP2 as well on Thursday.

Only need 65 UMS average on this and C4 to get my A
5. Finding the papers TERRIFYINGLY DIFFICULT!!

This was posted from The Student Room's iPhone/iPad App
6. Re: AQA Core 3 Exam May 31 2012 Official Discussion
can someone please help me out lol it;s my calculator..you know the normal Casio one..it normally converts it into fractions by pressing the S-D button (the change button thing) but now it doesnt :/ i may have accidentally pressed the wrong mode set up or something..does anyone know how i can sort that out ..(it just goes into decimals you see i need it in fractions!!) thankssss
7. Re: AQA Core 3 Exam May 31 2012 Official Discussion
(Original post by Raj K)
can someone please help me out lol it;s my calculator..you know the normal Casio one..it normally converts it into fractions by pressing the S-D button (the change button thing) but now it doesnt :/ i may have accidentally pressed the wrong mode set up or something..does anyone know how i can sort that out ..(it just goes into decimals you see i need it in fractions!!) thankssss
Press shift and mode/set up button then press 1 for "MthIO" You've currently got it set to "LineIO" which is more useful for physics
8. Re: AQA Core 3 Exam May 31 2012 Official Discussion
January's paper caught a lot of us out, it was just disastrous! Looking over it again though I've managed to do all the questions but in an exam situation it is completely different. Anyone need help with that paper?
9. Yep question 6b? Its 9 marks...

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10. Re: AQA Core 3 Exam May 31 2012 Official Discussion
x=cosecθ
dx/dθ=-cosecθcotθ
∴dx=-cosecθcotθ

Integral becomes:

∫_(√2)^2▒〖(-cosecθcotθ)/(〖cosec〗^2 θ√(1-〖cosec〗^2 θ)) dθ〗

∫_(√2)^2▒〖(-cotθ)/(〖cosec〗^ θ√(〖cot〗^2 θ)) dθ〗

∫_(√2)^2▒〖(-1)/(〖cosec〗^ θ) dθ〗

∫_(√2)^2▒〖-sin⁡θ dθ〗

[cosθ] 2¦√2

The next bit is to sub the limits into x=cosecθ and find out theta in radians then put them into cosθ and subtract them accordingly.
11. Re: AQA Core 3 Exam May 31 2012 Official Discussion

This might make it easier to see
12. Re: AQA Core 3 Exam May 31 2012 Official Discussion
(Original post by lee_vassallo)
Press shift and mode/set up button then press 1 for "MthIO" You've currently got it set to "LineIO" which is more useful for physics
ohhh no wonderrrr THANKYOUUUUUUUUUUUUUU
13. Re: AQA Core 3 Exam May 31 2012 Official Discussion
worried about this exam. The January one was so awful :'( praying for an easier paper! I swear the examiners just want us to fail
14. Thankyou very much for question 6b

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15. Re: AQA Core 3 Exam May 31 2012 Official Discussion
(Original post by Charliexo93)
worried about this exam. The January one was so awful :'( praying for an easier paper! I swear the examiners just want us to fail
As a matter of fact they do! or at least they want the pass rate to go down as its been on the up for the past 20 years or so. Basically, they're keen on separating the A* students from the A students.
16. Re: AQA Core 3 Exam May 31 2012 Official Discussion
I went over the Jan 2012 paper twice in the past few days and I got everything correct each time, incredibly frustrating. I think it was a hard paper but exam nerves played their part.
17. Re: AQA Core 3 Exam May 31 2012 Official Discussion
Personally, I hope the paper is as hard as it was in January. I bossed that past-paper and I'm really hoping for full UMS. However, I always make silly mistakes (exam-nerves), so if it is a hard paper, then the grade boundaries will be more generous to me

1 more day of solid revision left, use it wisely guys

Good luck.
18. Re: AQA Core 3 Exam May 31 2012 Official Discussion
Anyone else finding AQA web site being slower and more faulty than usual? Won't allow me to open up past paper files for Maths. What a time for it to happen, day before the exam!
19. Re: AQA Core 3 Exam May 31 2012 Official Discussion
Can anyone explain to me how to do the question from June 2008 7.c.
The part im stuck on is how they get integral of cos(theta) divided by cos(theta) squared to the power of 3/2 to sec squared theta... :/
20. Re: AQA Core 3 Exam May 31 2012 Official Discussion
(Original post by Z REFAN Z)
Can anyone explain to me how to do the question from June 2008 7.c.
The part im stuck on is how they get integral of cos(theta) divided by cos(theta) squared to the power of 3/2 to sec squared theta... :/
Because on the bottom, Cos^2(theta) becomes Cos^3(theta). Square root it first, then raise it to the power of 3.

That cancels with the top bit so you're left with 1/Cos^2(theta). Which is the same as Sec^2(theta)
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