synthesisFR
Well-Known Member
wait did the 2023 paper have a phillips lightbulb question?
I also used Cramer’s rule and the Moore-Penrose inverse to solve some of them.I put mine here: http://4unitmaths.com/cssa2022adv-tywebb.pdf
I would think most adv students are not in hell and so can use it.no way in hell is any adv student gonna use this
It's pretty easy. You can learn it in 5 minutes. You won't need two weeks.you don't know about matrices?! the hsc is in like two weeks, learn all about them you need it!!
my tutor did say each generation is getting dumber (with more explicit language)It's pretty easy. You can learn it in 5 minutes. You won't need two weeks.
Many years ago it was actually in the year 10 syllabus!
now i want to know exactly what he saidmy tutor did say each generation is getting dumber (with more explicit language)
damn it i should have compiled a list of all the outta pocket stuff he said over the two yearsnow i want to know exactly what he said
Possibly to give you 3x20c pieces if they were low/out of 50c and 10c pieces.i don't even know
CSSA's answer to their 2023 Adv paper Q28b is wrong. They should have checked ln(16/9)-1 is negative and so the distance is ln(9/16)+1 (or written as ln(9/16) - -1 as question said to write it as ln(a/b)-c)There were no professors. Only 1 of them is a uni lecturer and he was not even the convenor. The other 4 are from high schools.
It s not impossible. Here are my solutions: https://4unitmaths.com/cssa2023adv-tywebb.pdf
cssa seem to have a tendency of giving dodgy solutions, they have lots of problems in chemistry and physics as wellCSSA's answer to their 2023 Adv paper Q28b is wrong. They should have checked ln(16/9)-1 is negative and so the distance is ln(9/16)+1 (or written as ln(9/16) - -1 as question said to write it as ln(a/b)-c)
Checking doesn't seem to be CSSA's strong point because in the CSSA solutions for their 2023 Ext.2 paper Q16c there are actually 2 answers 219.1m/s OR 223.5m/s. They arise from the equation
View attachment 39610
In CSSA's solution the absolute value blissfully disappears and then they only get 1 answer 219.1m/s.
I was not so careless and put my solutions here for comparison and you will see how I got the 2 solutions: https://4unitmaths.com/cssa2023e2-tywebb.pdf
If the markers are made aware of this before they mark it then it won't matter.cssa seem to have a tendency of giving dodgy solutions, they have lots of problems in chemistry and physics as well
May I ask why you put expenses as 200 + 20n in Q23? Doesn't that make the expenses in the first week 220? The question says that they start at 200 and then increase by 20 per week.It is not impossible. Here are my solutions ...
This comment is very similar to what I hear the teacher who led the writing team has been saying to his class - and that he feels sorry for students who have teachers complaining that the exam was too difficult...If you were taught properly you would not feel so bad about it.
bump I have a friend who's asking (or was this answered already lol)Anyone know what the averages and top marks were for the CSSA math advanced 2023 trial in different schools
my school the average was in the high 60's and ppl got in the 80's and maybe 90'sbump I have a friend who's asking (or was this answered already lol)
in other schools averages were fails i thinkalr ill tell him 60s lol