Edexcel AS Further Maths Core Pure 13th May Watch

_gcx
  • Study Forum Helper
Badges: 18
Rep:
?
#21
Report 1 week ago
#21
(Original post by SarahLouise0911)
The order is wrong but I found the test hard :/

1.Matrix 2x2 inverse, determinant was -18 so not singular. Show that line was invariant.
2. Roots of polynomial w-3=x, don’t remember my answer though.
3. Argand diagrams? Roots aren’t the same quartic because they’re not complex conjugates. Prove argument was pi/4 and shade the diagram.
4. Is the line on the plane, intersect or parallel - didn’t manage to finish.
5. Three roots questions, -4 or 4 (don’t remember) and 2 +- 2^1/2. P was 22 or -22
6. Prod by induction (show that)
7. Vectors shortest distance I got as 427 approx so I saiid it was practical as OP was only 5 longer so not significant
8. Volume of revolution, I got the angle as 254 approx?
9. Series with the marbles mean and standard deviation, got the show that but can’t remember my answer for the standard deviation.
10. ChImPaNzEezZz
What was the induction question - was it series/divisibility/matrices or something else?
0
reply
RedGiant
  • Study Forum Helper
Badges: 21
Rep:
?
#22
Report 1 week ago
#22
(Original post by thekidwhogames)
Ah OK, my friends said the paper was extremely hard. Do you remember your answers for volume?
Erm was that the angle one? I don’t remember what I put down in the end, although I think I ended up with something like 20/3 as part of the result (if this means anything). Found a few of the questions quite hard (and ran out of time).
Posted on the TSR App. Download from Apple or Google Play
0
reply
Alyscara
Badges: 3
Rep:
?
#23
Report 1 week ago
#23
"8. Volume of revolution, I got the angle as 254 approx? "

Can't relate, got -3000 pi for the rotation on top of negative area where there shouldn't be negative area ever... 😂😂
0
reply
SarahLouise0911
Badges: 3
Rep:
?
#24
Report 1 week ago
#24
Series
(Original post by _gcx)
What was the induction question - was it series/divisibility/matrices or something else?
0
reply
thekidwhogames
  • Study Forum Helper
Badges: 17
Rep:
?
#25
Report 1 week ago
#25
My friend said 4.444 radians for volume?
8
reply
_gcx
  • Study Forum Helper
Badges: 18
Rep:
?
#26
Report 1 week ago
#26
(Original post by thekidwhogames)
My friend said 4.444 radians for volume?
I've seen this answer a lot on reddit, but I don't have the paper so can't verify.
0
reply
√-1
Badges: 14
Rep:
?
#27
Report 1 week ago
#27
i Got 1.41 radians 😂😭😭
Posted on the TSR App. Download from Apple or Google Play
0
reply
SarahLouise0911
Badges: 3
Rep:
?
#28
Report 1 week ago
#28
I worked out the volume of revolution like normal which gave the answer if it was rotated 360 then I compared it to the actual volume. The actual volume was like 70.7% of the 360 degree volume so I did it like that. Writing it out now it sounds wrong :/
(Original post by Alyscara)
"8. Volume of revolution, I got the angle as 254 approx? "

Can't relate, got -3000 pi for the rotation on top of negative area where there shouldn't be negative area ever... 😂😂
1
reply
_gcx
  • Study Forum Helper
Badges: 18
Rep:
?
#29
Report 1 week ago
#29
(Original post by SarahLouise0911)
Series
Ah, I was wondering because they can test induction proof beyond those "prescribed" 3 and that'd throw people off. They've done this on the specimen but haven't done it with the 2 live papers so far, but there's still the A-level CPs to come.
0
reply
Kaznajman
Badges: 3
Rep:
?
#30
Report 1 week ago
#30
I put 2.2 radians, not sure if that's right.
0
reply
Harry_Spencer
Badges: 13
Rep:
?
#31
Report 1 week ago
#31
got 221m for vectors, 76 for standard deviation, 40/9 (4.44) radians for volume of revolution, p = 22
4
reply
Alyscara
Badges: 3
Rep:
?
#32
Report 1 week ago
#32
(Original post by SarahLouise0911)
I worked out the volume of revolution like normal which gave the answer if it was rotated 360 then I compared it to the actual volume. The actual volume was like 70.7% of the 360 degree volume so I did it like that. Writing it out now it sounds wrong :/
That's really smart, I think I tried to solve for theta by dividing 461/2 by squiggle(f(X))² between 8 and 1/8, it was so wrong, but I didn't have enough time to finish the last 3
0
reply
Catsandmorecats
Badges: 1
Rep:
?
#33
Report 1 week ago
#33
Looking at this thread made me realise I halved something when I should’ve doubled it on the rotations questions and then it would’ve been totally right
0
reply
Amzino 22
Badges: 1
Rep:
?
#34
Report 1 week ago
#34
The paper was shite
0
reply
SarahLouise0911
Badges: 3
Rep:
?
#35
Report 1 week ago
#35
I’m glad everyone found it hard though. First few questions really deceived me into thinking the paper was going to be okay 😭
0
reply
√-1
Badges: 14
Rep:
?
#36
Report 1 week ago
#36
(Original post by SarahLouise0911)
I’m glad everyone found it hard though. First few questions really deceived me into thinking the paper was going to be okay 😭
even the standard deviation question?
Posted on the TSR App. Download from Apple or Google Play
0
reply
Alyscara
Badges: 3
Rep:
?
#37
Report 1 week ago
#37
(Original post by SarahLouise0911)
I’m glad everyone found it hard though. First few questions really deceived me into thinking the paper was going to be okay 😭
Right, I thought I'd have enough time, I did the first half of the paper in 40 minutes, me thinking I have time decides to take it slow for the vectors, looks at the time and sees I have half an hour to do the last four questions. I skim the pages and realise the last three questions count for 32 marks, 12, 8, 12.... I then abandon all hope on vectors and almost have a panic attack in the exam room. It was disgusting.
0
reply
FirstAstroRook
Badges: 12
Rep:
?
#38
Report 1 week ago
#38
4.44 recurring radiance

welldone!
(Original post by thekidwhogames)
My friend said 4.444 radians for volume?
1
reply
dasdsd
Badges: 5
Rep:
?
#39
Report Thread starter 1 week ago
#39
Can’t remember did it ask for the angle in degrees not radians? I got 4.4 radians
(Original post by SarahLouise0911)
The order is wrong but I found the test hard :/

1.Matrix 2x2 inverse, determinant was -18 so not singular. Show that line was invariant.
2. Roots of polynomial w-3=x, don’t remember my answer though.
3. Argand diagrams? Roots aren’t the same quartic because they’re not complex conjugates. Prove argument was pi/4 and shade the diagram.
4. Is the line on the plane, intersect or parallel - didn’t manage to finish.
5. Three roots questions, -4 or 4 (don’t remember) and 2 +- 2^1/2. P was 22 or -22
6. Prod by induction (show that)
7. Vectors shortest distance I got as 427 approx so I saiid it was practical as OP was only 5 longer so not significant
8. Volume of revolution, I got the angle as 254 approx?
9. Series with the marbles mean and standard deviation, got the show that but can’t remember my answer for the standard deviation.
10. ChImPaNzEezZz
0
reply
~Fractal~
Badges: 9
Rep:
?
#40
Report 1 week ago
#40
Radians I think.
(Original post by dasdsd)
Can’t remember did it ask for the angle in degrees not radians? I got 4.4 radians
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • SOAS University of London
    Postgraduate Open Day Postgraduate
    Wed, 29 May '19
  • University of Exeter
    Undergraduate Open Day - Penryn Campus Undergraduate
    Thu, 30 May '19
  • Cranfield University
    Cranfield Forensic MSc Programme Open Day Postgraduate
    Fri, 31 May '19

How did your AQA A-level Business Paper 1 go?

Loved the paper - Feeling positive (209)
22.64%
The paper was reasonable (416)
45.07%
Not feeling great about that exam... (173)
18.74%
It was TERRIBLE (125)
13.54%

Watched Threads

View All
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise