IGCSE Mathematics January 2019 - 4MA1/2H

IGCSE Mathematics January 2019 - 4MA1/2H

Contents:
00:00 - Intro
00:10 - Question 1
00:57 - Question 2
01:45 - Question 3
03:12 - Question 4
04:35 - Question 5
06:54 - Question 6
08:45 - Question 7
10:27 - Question 8
12:01 - Question 9
14:37 - Question 10
15:54 - Question 11
17:07 - Question 12
18:59 - Question 13
20:49 - Question 14
22:10 - Question 15
24:15 - Question 16
25:43 - Question 17
27:01 - Question 18
28:31 - Question 19
29:55 - Question 20
32:00 - Question 21
34:19 - Question 22
37:19 - Question 23

[ItsLevaQ]

I'm confused, for question 16, the scale factor I got was 8√3/3
I entered 3√960/405 into the calculator and that's what I got, how did you derive 4/3? 😅

[salmonella]

hello! i wanted to ask how in question 22 the r/5/3r simplified to 3/5? the r cancels out but how did the numerator and denominator switch?

[blackeye]

On question 15 how did you go from 133 to 266 pls explain

[asmazahra]

Teacher can you please send the January and june 2023 paper solving please

[lilrishitherapperofficial]

Hi can you please explain the four markers in more detail??

[devanshpurohit]

I don't understand for question 3 instead of 3x why you wrote 2x because we brought 36 to other side which becomes 90-36 which gives you 54 then after that we need to divide the number by 3x the 3x gets cancelled so 3x/54 which gives you 18 in calculator?
can you just clarify these question.