2026 HSC CHAT (16 Viewers)

[f7eeting]

has anyone started the 4u math course at school yet? if so, how far into complex did u guys get into for the first few lessons?

so far i've only done basic arithmetic like adding subtracting etc. also a lot of stuff on solving equations using complex numbers
we haven't gotten to the geometric representation yet tho

 

[jinxioalongbao]

so far i've only done basic arithmetic like adding subtracting etc. also a lot of stuff on solving equations using complex numbers
we haven't gotten to the geometric representation yet tho

did u guys cover euler's expo form and De Moivre's theorem?

 

[ellurbee]

Brah what the helly biscuits and gravy looks sooo unappetising-

 

[f7eeting]

did u guys cover euler's expo form and De Moivre's theorem?

nah we're nowhere near that lol

 

[C_master]

lucky bunch

 

[gossipgirllll]

lucky bunch

nah imagine having to go thru year 12 id kms

 

[ellurbee]

I'm gonna explode

 

[Study to success]

I'm gonna explode

real. Also wow I just realised we basically do the same subjects except I do dt instead of chem

 

[ellurbee]

twin

real. Also wow I just realised we basically do the same subjects except I do dt instead of chem

 

[Socialism]

is adfa good

depends? what are you doing after school?

 

[hi_998]

any1 else lowk wishing they could just sit their hsc rn and get school over and done with

 

[Study to success]

any1 else lowk wishing they could just sit their hsc rn and get school over and done with

yeah kinda

 

[Socialism]

nah i definitely need the next year to prepare

 

[C_master]

lucky bunch

unlucky bunch*

 

[No_Kaeya?!]

Chat is this real?

 

[f7eeting]

ok bump. I know how to do a but B is very confusing. mY teacher put worked solutions up but I don't get when u draw the 2nd tree for when they pick the second person, (if first person is married woman). Like how does it affect that treeView attachment 49521

View attachment 49522

wait what the hay bahaha are we in the same class?? lol
anyways, if you know the first person picked is a woman, then that means that there's one less person you can choose (bc u cant choose that woman again) meaning that the total amount of people goes from 66 to 65.
the number of males stays the same, so the number of married/unmarried men is unaffected and therefore the chance of a man being unmarried is 21/65.

to go a little further, since a married woman has been chosen, you can also consider how that would affect the sample space of women. it will reduce the total amount of people to choose from by 1, but also reduce the number of women in specific by 1, making the chance of choosing a woman 31/65 (which adds up)
this also means that the number of unmarried women is unaffected, and will be 13/31 whilst married women is affected and will be 18/31

if u wanna practice these kinds of calculations, these are multi-stage probability questions where the events are dependent on each other, like choosing something without replacement

 

[bigupsanky]

ill tell you now everybody drop out of school and go tafe this path isnt worth it yall

 

[.kumori]

ok bump. I know how to do a but B is very confusing. mY teacher put worked solutions up but I don't get when u draw the 2nd tree for when they pick the second person, (if first person is married woman). Like how does it affect that treeView attachment 49521

View attachment 49522

your notes are so neat and tidy :0

 

[spiderlemonade]

ok bump. I know how to do a but B is very confusing. mY teacher put worked solutions up but I don't get when u draw the 2nd tree for when they pick the second person, (if first person is married woman). Like how does it affect that treeView attachment 49521

View attachment 49522

is that your handwriting? its so neat

 

[Reasonabledoubt]

yall dont even know whats waiting