CSSA trial (advanced/ extension maths) (1 Viewer)

[its_ace21]

bump I have a friend who's asking (or was this answered already lol)

my school the average was in the high 60's and ppl got in the 80's and maybe 90's

 

[SadCeliac]

alr ill tell him 60s lol

 

[its_ace21]

alr ill tell him 60s lol

in other schools averages were fails i think

 

[breadcrumbs]

bump I have a friend who's asking (or was this answered already lol)

my schools avg was like 30 or 40 something and only one person got above 80

 

[Whatmathsdoineed]

i did solutions to 2024 ext 1 and 2 cssa

https://4unitmaths.com/cssa-2024-e1-sol-tywebb.pdf

https://4unitmaths.com/cssa-2024-e2-sol-tywebb.pdf

many of my methods differ from cssa solution methods often leading to more efficient soutions

tywebb do u have standard by any chance

 

[bruhmoment.]

i did solutions to 2024 ext 1 and 2 cssa

https://4unitmaths.com/cssa-2024-e1-sol-tywebb.pdf

https://4unitmaths.com/cssa-2024-e2-sol-tywebb.pdf

many of my methods differ from cssa solution methods often leading to more efficient soutions

yo just wanted to ask, how did u figure out how to do q10 of the 3u cssa 2024 exam. I've literally not heard a SINGLE person that hasn't guessed it. everyone just 50/50 it for b/c since answers were so similar. also with 13d, im probably wrong and so are others from my school but everyone ended up getting 36/25pi. forgot what the question is (something related to hemispherical bath). Thanks.

 

[jonolad69]

anyway here is another version of solutions this time in video format and it is for all the cssa maths in 2024: https://sites.google.com/parra.catholic.edu.au/2024-cssa-mathematics-trial-so/home

is this your website tywebb

 

[WeiWeiMan]

yo just wanted to ask, how did u figure out how to do q10 of the 3u cssa 2024 exam. I've literally not heard a SINGLE person that hasn't guessed it. everyone just 50/50 it for b/c since answers were so similar. also with 13d, im probably wrong and so are others from my school but everyone ended up getting 36/25pi. forgot what the question is (something related to hemispherical bath). Thanks.

the vectors visualising for mcq10 is legit useless
you're basically figuring out the number of ways you can arrange m right moves and n up moves

this is basically just arranging m R's and n U's in a straight line
this can be done 2 ways:
first way: (m+n)!/m!n!, where (m+n) is the total number of letters and n! and m! account for the double ups

second way: choose m R's from m+n U's and R's, so m+n C m = (m+n)!/m!n!

hence C

 

[Average Boreduser]

lowkey gotta love when you pull nearly all of 14 and lose majority of your marks in the q11 I shouldve 95ed this shit if I just stayed focused and used my time wisely. Word of advice to students doing 3u accelerated, remember to balance all your subjects out. If you continually do maths, it will take a toll on your processing speed+ awareness when you are doing exams. Coming from someone who did exactly that in this test and got hit w a 82

 

[bruhmoment.]

lowkey gotta love when you pull nearly all of 14 and lose majority of your marks in the q11 I shouldve 95ed this shit if I just stayed focused and used my time wisely. Word of advice to students doing 3u accelerated, remember to balance all your subjects out. If you continually do maths, it will take a toll on your processing speed+ awareness when you are doing exams. Coming from someone who did exactly that in this test and got hit w a 82

82 still aint that bad bro. i got bummed with a 70. legit aced q14 (somehow got 3/5 for cycloid question) and everything else was fine and did silly mistakes in q13 like ffs.

 

[Average Boreduser]

82 still aint that bad bro. i got bummed with a 70. legit aced q14 (somehow got 3/5 for cycloid question) and everything else was fine and did silly mistakes in q13 like ffs.

bruh how did u get 3lmfao. I got 3.5 and I pulled out the 2sin^2(x/2) wtf