MATHS#38 ~ JANUARY 2024 PAPER 1 ~ CXC CSEC MATHEMATICS [Check my comments below for helpful info~]
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- čas přidán 14. 03. 2024
- CSEC Mathematics January 2024 Paper 1 Timestamps:
01 Q 0:04 ~ pi rounded to 3 decimals ~ A 0:11
02 Q 0:19 ~ percent of ~ A 0:27
03 Q 0:35 ~ standard notation ~ A 0:42
04 Q 0:50 ~ apples, least common multiple ~ A 0:58
05 Q 1:06 ~ part to whole ~ A 1:13
06 Q 1:21 ~ percent, glasses ~ A 1:29
07 Q 1:37 ~ sets, complement ~ A 1:44
08 Q 1:52 ~ sets, range ~ A 2:00
09 Q 2:07 ~ sets, union formula ~ A 2:15
10 Q 2:23 ~ Venn diagram, intersection ~ A 2:31
11 Q 2:38 ~ disjoint sets ~ A 2:46
12 Q 2:54 ~ Venn diagram, cats, dogs ~ A 3:01
13 Q 3:09 ~ consumer math, discount ~ A 3:17
14 Q 3:25 ~ currency conversion ~ A 3:33
15 Q 3:40 ~ hire/cash purchase ~ A 3:48
16 Q 3:56 ~ wages, mean daily wage ~ A 4:03
17 Q 4:11 ~ tax payable ~ A 4:19
18 Q 4:27 ~ commission ~ A 4:34
19 Q 4:42 ~ wages, basic pay, overtime ~ A 4:50
20 Q 4:58 ~ change on calculator purchase ~ A 5:05
21 Q 5:13 ~ savings by mathematical statement ~ A 5:21
22 Q 5:29 ~ abstract algebra, a star b ~ A 5:36
23 Q 5:44 ~ trapezium, height ~ A 5:52
24 Q 5:59 ~ algebra ~ A 6:07
25 Q 6:15 ~ multiplication, exponents, like bases ~ A 6:23
26 Q 6:30 ~ algebra ~ A 6:38
27 Q 6:46 ~ vector linearity ~ A 6:54
28 Q 7:01 ~ parallelogram, triangle rule for vectors ~ A 7:09
29 Q 7:17 ~ algebra w/ vectors ~ A 7:25
30 Q 7:32 ~ inverse matrix ~ A 7:40
31 Q 7:48 ~ average speed ~ A 7:55
32 Q 8:03 ~ trapezium, perimeter ~ A 8:11
33 Q 8:19 ~ circle, minor arc length ~ A 8:26
34 Q 8:34 ~ velocity formula ~ A 8:42
35 Q 8:50 ~ circle, sector, area ~ A 8:57
36 Q 9:05 ~ cuboid, height ~ A 9:13
37 Q 9:21 ~ triangle, area, base ~ A 9:28
38 Q 9:36 ~ perimeter, square, rectangle ~ A 9:44
39 Q 9:51 ~ median class, lower limit ~ A 9:59
40 Q 10:07 ~ frequency distribution ~ A 10:15
41 Q 10:21 ~ modal class ~ A 10:30
42 Q 10:38 ~ lower quartile, cumulative frequency ~ A 10:46
43 Q 10:53 ~ probability w/ bar graph data ~ A 11:01
44 Q 11:09 ~ probability ~ A 11:17
45 Q 11:24 ~ equation of straight line ~ A 11:32
46 Q 11:40 ~ linear function, vertical axis ~ A 11:47
47 Q 11:55 ~ arrow diagram ~ A 12:03
48 Q 12:11 ~ y-intercept, straight line ~ A 12:18
49 Q 12:26 ~ function value, h(x) ~ A 12:34
50 Q 12:42 ~ function, inverse function value ~ A 12:49
51 Q 12:57 ~ parabola intersects x-axis ~ A 13:05
52 Q 13:13 ~ gradient, perpendicular line ~ A 13:20
53 Q 13:28 ~ translation vector ~ A 13:37
54 Q 13:43 ~ parallel lines, transversal ~ A 13:51
55 Q 13:59 ~ ship path, bearings ~ A 14:07
56 Q 14:14 ~ supplementary angles ~ A 14:22
57 Q 14:30 ~ line rotated anti-clockwise ~ A 14:38
58 Q 14:45 ~ angle in a triangle in a circle ~ A 14:53
59 Q 15:01 ~ trig w/ angle of a depression ~ A 15:08
60 Q 15:16 ~ sine w/ right-angled triangle ~ A 15:35
My CSEC Maths January Playlist:
• CXC CSEC Mathematics J...
My CSEC Maths May/June, One July Playlist:
• CXC CSEC Mathematics M...
All CSEC Maths Vids ~ Highest Revised Versions ~ Listed Chronologically:
• CSEC Mathematics Paper1s
++++++++++++++++++++++++++++++++++++++++++++
01-B 11-D 21-C 31-C 41-A 51-C
02-B 12-D 22-A 32-C 42-A 52-A
03-C 13-C 23-A 33-B 43-D 53-B
04-B 14-B 24-C 34-D 44-C 54-A
05-D 15-D 25-B 35-D 45-C 55-C
06-A 16-C 26-D 36-A 46-D 56-D
07-B 17-B 27-C 37-B 47-B 57-A
08-C 18-C 28-A 38-B 48-D 58-B
09-A 19-D 29-B 39-A 49-C 59-D
10-A 20-A 30-D 40-D 50-B 60-A
++++++++++++++++++++++++++++++++++++++++++++
CSEC Maths ~ January 2024 ~ Multiple Choice Answers
++++++++++++++++++++++++++++++++++++++++++++
January 2024 Paper 2 Solutions Playlist
czcams.com/users/playlist?list...
![MATHS#40 ~ MAY/JUNE 2024 CSEC MATHS PAPER 1 [Quick version] [Check pinned comment]](http://i.ytimg.com/vi/CzleyjcmbrU/mqdefault.jpg)
![MATHS#40 ~ MAY/JUNE 2024 CSEC MATHS PAPER 1 [Quick version] [Check pinned comment]](/img/tr.png)
Yes, you can have the paper(s)~
Email me: csec.chemistry.paper1@gmail.com
w/ subject like "Jan 2024 Paper 1 CSEC Maths"
Let me know if you want Paper 2 as well~
CSEC Maths ~ January 2024 ~ Paper 1 Answers:
01-B 11-D 21-C 31-C 41-A 51-C
02-B 12-D 22-A 32-C 42-A 52-A
03-C 13-C 23-A 33-B 43-D 53-B
04-B 14-B 24-C 34-D 44-C 54-A
05-D 15-D 25-B 35-D 45-C 55-C
06-A 16-C 26-D 36-A 46-D 56-D
07-B 17-B 27-C 37-B 47-B 57-A
08-C 18-C 28-A 38-B 48-D 58-B
09-A 19-D 29-B 39-A 49-C 59-D
10-A 20-A 30-D 40-D 50-B 60-A
CSEC Maths ~ January 2024 ~ My Paper 2 Solutions Playlist:
czcams.com/play/PLjCZPg9qLWrJcvF01tZujyTpfc-0UlFZ1.html
CSEC Maths ~ May/June 2024 ~ My Paper 2 Solutions Playlist:
czcams.com/play/PLjCZPg9qLWrIvRgZhiaTBiVMGBJ8V8MXn.html
My CSEC Maths Solution Vids for Paper 1s:
May/June 2024 ~ czcams.com/video/CzleyjcmbrU/video.html
May/June 2023 ~ czcams.com/video/e2nYeJMNADU/video.html
May/June 2022 ~ czcams.com/video/6aIm-w3O568/video.html
May/July 2021 ~ czcams.com/video/wHKjwEZhg4k/video.html
May/June 2020 ~ czcams.com/video/C2FZym66rFc/video.html
May/June 2019 ~ czcams.com/video/8R_9atO-W1E/video.html
May/June 2018 ~ czcams.com/video/qFMSHkEht1M/video.html
May/June 2017 ~ czcams.com/video/fomv4YaZR7o/video.html
May/June 2016 ~ czcams.com/video/4oIjZ3hE0RQ/video.html
May/June 2015 ~ czcams.com/video/ndD3mLyTaMg/video.html
May/June 2014 ~ czcams.com/video/EcpaBibyTJI/video.html
May/June 2013 ~ czcams.com/video/KSmIc0xGjSs/video.html
May/June 2012 ~ czcams.com/video/GXy-hPuCSpk/video.html
May/June 2011 ~ czcams.com/video/_esRny-ovUU/video.html
May/June 2010 ~ czcams.com/video/0W_RkLZ0HP4/video.html
May/June 2009 ~ czcams.com/video/sEoA-KhRe98/video.html
May/June 2008 ~ czcams.com/video/Mahiu9XyK6M/video.html
May/June 2007 ~ czcams.com/video/R4FnosmqmxM/video.html
May/June 2006 ~ czcams.com/video/79BX9JuPn5s/video.html
May/June 2005 ~ czcams.com/video/rVMaqMPPjCM/video.html
May/June 2004 ~ czcams.com/video/8Dxf_JA7cPQ/video.html
May/June 2003 ~
May/June 2002 ~
May/June 2001 ~ czcams.com/video/BhEP0ReHN3Y/video.html
January 2024 ~ czcams.com/video/s9lFlmSHCGI/video.html
January 2023 ~ czcams.com/video/lXLhUSsU1Xg/video.html
January 2022 ~ czcams.com/video/3uzrUhtKZhA/video.html
January 2021 ~ czcams.com/video/yN6QR0rz33I/video.html
January 2020 ~ czcams.com/video/KX6Vs6DRZXM/video.html
January 2019 ~ czcams.com/video/k0NS48rWPGg/video.html
January 2018 ~ czcams.com/video/09scXnajSz8/video.html
January 2017 ~ czcams.com/video/Ry8Z2LNIBv0/video.html
January 2016 ~ czcams.com/video/NI2LdJHUY2A/video.html
January 2015 ~ czcams.com/video/qIPsZrWLnE0/video.html
January 2014 ~ czcams.com/video/UZVZtCmvICc/video.html
January 2013 ~ czcams.com/video/xD9IxhCFPao/video.html
January 2012 ~
January 2011 ~ czcams.com/video/ehmPK9qG9gA/video.html
January 2010 ~ czcams.com/video/XYm6DekfHUc/video.html
January 2009 ~
January 2008 ~
January 2007 ~ czcams.com/video/3CuI-LvYc4o/video.html
January 2006 ~ czcams.com/video/ZxBQKePW35U/video.html
January 2005 ~ czcams.com/video/FeVOKismCQE/video.html
January 2004 ~
January 2003 ~
January 2002 ~
January 2001 ~ czcams.com/video/K6AcZiC0zKE/video.html
Soooooo grateful that I found this channel. You're a gem!!!
I have pdfs for the following CSEC Maths
January Paper 1s: 2001, 2005 to 2007, 2010, 2013 to 2024
May/June Paper 1s: 2001, 2004 to 2023
It's alright if you just want one file or all of them~
Email me, will reply when I see your message
Put email subject like "csec maths p1s" etc
csec.chemistry.paper1@gmail.com
My Solutions here
January Paper 1s Only
czcams.com/play/PLjCZPg9qLWrLhHeXKPJdQhzcCA6PwaHCI.html
May/June Paper 1s Only:
czcams.com/play/PLjCZPg9qLWrJ6XtJ7Lgm2sZ2Lb8IrAikW.html
All Paper 1s posted so far, in reverse chronological order:
czcams.com/play/PLjCZPg9qLWrL2gpo9n0oGd2R-qWUZpbiR.html
(Handful of corrections noted in comments or pinned comments)
May 18, 2024, just found the pdf for the recent Maths Paper 2 on scribd
Email if you want a pdf copy of the May/June 2024 CSEC Maths Paper 02
csec.chemistry.paper1@gmail.com
With:
subject ~ "2024 M/J P2 CSEC Maths"
Don't have the Paper 1 yet~
My solutions playlist for CSEC Maths Paper 2 May 2024:
czcams.com/play/PLjCZPg9qLWrIvRgZhiaTBiVMGBJ8V8MXn.html
(still writing them up, I should be done some time in June 2024)
Check the playlist description for some info about the marks distribution~
thanks sir
CSEC Maths Paper 1, May/June 2024 ~ czcams.com/video/CzleyjcmbrU/video.html
Someone asked for Technical Drawing Paper 1s
If you're seeing this:
I have pdfs for 2011, all from 2014 to 2020, and 2022 CSEC TD P1s
Email me w/ subject "csec td p1s" if you need those still~
What is the difference between y=mx+c & y=mx+b
No.45. (c). I dont understand, pls explain😐😐😐
both equations represent the slope-intercept form of a line
in the Caribbean, they probably use the word gradient more than slope
and you'll probably see y = mx + c more than y = mx + b for the equation of a straight line
but altogether, they both (the variables b or c) represent the y-intercept, the value of y when x = 0
ask chatgpt4 if you want more info, ask it which one is more popular worldwide~
if you really want to use your brain-power to think about something
riddle me this:
check out 3b from the May 2024 CSEC Maths Paper 2
3b ~ czcams.com/video/jN8rZ0Pwn-g/video.html
you aren't given which pair of sides of the triangle are equal
so why is LR = RT? you might say because the triangle is isosceles
by that same token, LT = LR, why? because it's isosceles
or LT = TR, why? because it's isosceles
so doesn't that mean there are 3 possible values for x degrees?
there would be 3 cases to consider
so doesn't that beg the question to just assume which 2 sides are equal?
so at this point of deduction,
we're faced with 3 possible isosceles triangles; with angles:
76°, 76°, 28° or 28°, 28°, 124° or 28°, 124°, 28°
and notice is all cases, the two remote angles sum to external angle LRN = 152°
because vertical angles are congruent and alternate interior angles are congruent
we know for sure angle RLT is (x - 28)°
but what is the other angle, 28° or (x - 28)°
we still haven't established which 2 sides are congruent
which are the base angles?!
Just found the 2024 May/June 2024 Paper 1 on scribd
thank you to the person who uploaded it!
currently, writing up my solutions for it
Email w/ subject "m/j p1 2024 csec maths" for that pdf copy
will reply with it when I see your message
csec.chemistry.paper1@gmail.com
explain number 59 please
XY is parallel to the line containing Z, lets just call that line AZ
line XZ is a transversal
angles YXZ and angle XZA form alternate interior angles
alternate interior angles are congruent
given that angle XZA is 35°
the angle within the triangle is also 35°
XY is perpendicular YZ as indicated by the right angle on the diagram
the angle at Y is a right angle
interior angles of a triangle sum to 180°
in triangle XYZ we have
Sue I emailed you
What did you put for this question czcams.com/video/gyBC5Hj8U7o/video.html
It's Number 29 on my hand-picked Paper 1s Playlist:
czcams.com/play/PLjCZPg9qLWrJHsUWHTE2ShCDQ77rvY6J1.html
From the P1 of January 2022
Comment on that video which you put please
And if you agree choice D is correct
Any opinions about it appreciated~
I just emailed you sir
hey did you get the paper?
csec.chemistry.paper1@gmail.com
I don't think I saw your email yet~
Is true this?
yes, its true
you can trust it~
the exam is real
the answers are real
the repeated questions are real
this is the multiple choice part from the January exam a few months ago
almost all of the questions have repeated from past exams
there are links to many more of my solution-videos in the pinned comment~
@@csec-maths-chem-paper1s God Bless you bro ill be sure to revise 👀
@@keshsans536 Keep after it ~ most of the questions repeat, so it's just a matter of dedicating your time to go over as many past papers as you can ~ I have a list of links to all my vids for about 40 past paper 1s in the pinned comment here, so you don't have to fish around for them
I watched all of these videos from 2007 till 2024 and I kid you not I saw atleast 45 repeated questions 😮… I know I passed paper one for sure but I didn’t do so well on paper 2 an my Sba was full marks.. can I still pass???
I like how many repeats there are on these exams ~ they really give students a chance who prepare with past papers a good chance to get a lot of marks for free ~ I'll ask chatgpt4 for an estimate about the marks
gpt4 says passing is still possible! hehehe~ I honestly don't know how the examiners mark things .. too bad you got to wait a few months to find out!!
@@csec-maths-chem-paper1s I back checked my answers for paper one and I got 46/60.. I got full marks for the SBA but paper two I did bad.. do u think I still have a shot of atleast getting. Three?? Sigh
@@Khaleesi101 I was asking chatgpt4 and it keeps dodging answering the question ~ IDK!! we'll see how they mark it.. when you say you didn't do so well on paper 2, do you think that's less than 50 marks out of the 100 marks you can get for it?
@@csec-maths-chem-paper1s lol honestly, yes
But for some I wrote down the formulas and did workings
How is 42 A n in 2022 the answer is C 🤔
Jan 2022? Same chart, but they ask for the median mark there
The median and lower quartile marks are not the same thing
CXC uses the same questions but modify some of the given information/data,
even with the charts/diagrams questions
So you gotta keep alert for subtle changes on seemingly similar questions~
There are a handful like that I've added to a playlist
I didn't get a chance to put all 200 questions I had planned for it yet
But here's some worthwhile to check out
Notice how sneaky the changes are, but ultimately they are not the same questions~
Sometimes, it's just one variable changed
czcams.com/play/PLjCZPg9qLWrJHsUWHTE2ShCDQ77rvY6J1.html
8. B
9. C
10. D
8:C
9:D
10:A
he put the right answers
hey for number 8, pay attention to the inequality sign
notice 0 is an element within the integer range defined
now, plug in 0 in choice B
notice the inequality is false,
so that couldn't possibly describe the integers they're asking for
so number 8 is not B
@@Zesus15 hey 9 can't be D because the intersection has elements in it and you can't double count those
@@Zesus15 so it's not as simple as number of elements in X plus number of elements in Y
you then have to subtract the number of elements that both sets have in common
so it's like the number of elements in X union Y is:
number of elements in X
plus number of elements in Y
minus number of elements they both have in common
that last piece is necessary because we double counted in the sum
Sir, i just emailed you
just saw it, I sent the paper 1s requested~
30 is wrong
the inverse matrix question?
the only way I see you might think that is if you took the determinant of the modified matrix instead of the given matrix
you multiply by 1 over the determinant of the given matrix, which is 1
and then you swap the main-diagonal values and negate the off-diagonal values for the inverse matrix
practice here, just click on 2 x 2 and put in matrix values
www.symbolab.com/solver/matrix-inverse-calculator
Isnt 42. C) 37.5😮
the lower quartile is the 25th percentile, right?
so the cf-axis value you take 25% of students, which is .25 x 200 = 50
and then we draw a line from 50 on the y-axis towards the curve
then down to the x-axis to find the corresponding mark, which is 30 marks no?
could you explain how you're getting 37.5
inter quartile = 37.5, lower quartile = 30.0
Its funny how number 3 isn't B
in standard notation, it isn't right?
because the number multiplying the power of 10,
has to be a number less than 10 and bigger than 1
so it can't be B~
or more precisely that number is
a real number within the interval (1, 10)
@@csec-maths-chem-paper1s i now understand
@@bibin1023 initially I didn't even realize they were equivalent upon multiplication
because when you strategically eliminate choices
I had already crossed out B and D
but I see what you meant, they are indeed equivalent (B and C)
though only one of those falls under standard notation rules~