# Edexcel AS Further Maths Core Pure 13th MayWatch

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1 week ago
#61
I got 4149*pi/40 as the volume when rotated 2 pi radians for Q9.

This means that you multiply 4149/40 by half the angle (pi) to get the volume for a given angle

So 4149/40 * 20/9 gives 461/2 (the specified volume).

This means 20/9 is half the angle, so the angle of rotation is (20/9)*2 = 40/9 (or 4.44 radians)
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1 week ago
#62
I got lambda as 3/4, and the length as 221m. The angle one I flopped completely, and the marbles one was just awful
(Original post by Livie1717)
Anyone else get lambda as 57/77 in the vectors mountain question or have I gone seriously wrong?

Also, I got 4.44 radians for the angle and have no idea about that weird summation question
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1 week ago
#63
Does anyone remember the marks for each question? so i can work out what i got
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1 week ago
#64
(Original post by Ejaz_U)
I got lambda as 3/4, and the length as 221m. The angle one I flopped completely, and the marbles one was just awful
I got lambda as 3/4 also, can't remember the length I got but I would think I got the same.

Also, for the next part of that question, it seemed a bit ambiguous as to what a "significantly shorter" distance was?
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1 week ago
#65
What did people get for a in the last question?
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1 week ago
#66
(Original post by Katherinejc)
What did people get for a in the last question?
I got a=0.6, although I only recognised that last minute and wasn't able to change all my other answers in time using the incorrect value of 'a' I had previously
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1 week ago
#67
Does anyone remember the exact question for the volume of rev. one?
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1 week ago
#68
I just worked out the distance of OP and OQ, showed that they were both greater than 221m, and then stated that they should build the new tunnel
(Original post by Synthetic Dozen)
I got lambda as 3/4 also, can't remember the length I got but I would think I got the same.

Also, for the next part of that question, it seemed a bit ambiguous as to what a "significantly shorter" distance was?
0
1 week ago
#69
what did the chimpanzee question exactly ask for?
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1 week ago
#70
so much man, so much
(Original post by maruchan)
what did the chimpanzee question exactly ask for?
2
#71
Question 9 was 8 marks, question 4 was 5 marks, question 5 was 8 marks. No idea about the rest.
(Original post by Ejaz_U)
Question 1 - around 6/7 marks
Question 2 - around 5/6 marks
Question 3 - 6 marks?
Question 4 - 7 marks?
Question 5 - 5 marks
Question 6 - I forgot
Question 7 - 8 marks?
Question 8 - 8 marks?
Question 9 - 10 marks?
Question 10 - 9 marks?

I'm probably really inaccurate with the marks
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1 week ago
#72
(Original post by Ejaz_U)
I just worked out the distance of OP and OQ, showed that they were both greater than 221m, and then stated that they should build the new tunnel
Yeah that’s correct, I got my distance being in the 220s as well. My λ was 1/4
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1 week ago
#73
That was pretty much the only question I was alright in, everything else was shambolic
(Original post by NATHan w)
Yeah that’s correct, I got my distance being in the 220s as well. My λ was 1/4
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#74
Can’t believe I didn’t get the vector question because I didn’t find k..
1
1 week ago
#75
i'm doomed
(Original post by ananomousey)
so much man, so much
0
1 week ago
#76
I almost lost my marbles with that standard deviation q, until I realised it was given in the formula book.
0
1 week ago
#77
That was way harder than I expected. Glad it's not just me.

My highlight was when I found a standard deviation of sqrt(-6800). The other questions I think I did decent on, apart from chimpanzee.
2
1 week ago
#78
**** is AS FM is this hard the A2 exams is gonna be aidsss 🤢. Can someone elaborate on the vectors questions
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1 week ago
#79
did anyone find everything hard?
0
1 week ago
#80
not really, only the last one and a couple of the others - it tested your understanding not just whether you could apply some equations to various things
(Original post by nk02)
did anyone find everything hard?
1
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