Li0n
spiKu
zergcave said:MIF - ? dont they only produce books for the idiot course......?? errr........ahhaahah jkz
you should do the idiots course mate, they learn quad formula there ROFL~@!?>@!?.no.
zergcave said:MIF - ? dont they only produce books for the idiot course......?? errr........ahhaahah jkz
lol im sorri? was that post in reference to some other thread?Li0n said:you should do the idiots course mate, they learn quad formula there ROFL~@!?>@!?.no.
we use Maths in Focus, by Margaret Grove. our teacher also photocopies stuff from the Jones and Couchman. for harder questions we use this small one by a guy called Fitzpatrick, which is quite helpful in exam prep.zergcave said:we are currently using the classic Couchman Jones 3 unitmaths text in class.
what do u pple use??
i feel that this book is quite outdated (my maths teacher used the book himself, in his HSC) and does not realli have the harder questions to truly challenge students. It is, i have heard, actually the easiest book out there in use by skools.
im thinking about getting the harder texts for year 12...Cambridge or Coroenos.
ooh... so Fitzpatrick is small...Alison Grace said:we use Maths in Focus, by Margaret Grove. our teacher also photocopies stuff from the Jones and Couchman. for harder questions we use this small one by a guy called Fitzpatrick, which is quite helpful in exam prep.
Cambridge is worth. It is better than New Senior maths as i know. NSM is good at explain, but cambridge is good at practising. Using both of them, you will find they both are useful, but cambridge will be much better, though.amoz_lilo said:I'm thinking of buying the yr11 Cambridge...except I havent touched couchmann....
I am not using cambridge for 4U, 3U only, nothing to do with 4U cambridge, But i heard that the auther is not very good, but......... ummmmm, how is that book, but excel 4U is particularly good. All my classmates use it. It is complusory for all the 4U students in my school.Li0n said:only ext-2 cambridge is small
ext-1 prelim and ext-1 hsc cambridge are heavy fuckers.
and cambridge ext-2 is stll big compared to that cornease ext2
the authors are smart peoplepsych_girl said:I am not using cambridge for 4U, 3U only, nothing to do with 4U cambridge, But i heard that the auther is not very good, but......... ummmmm, how is that book, but excel 4U is particularly good. All my classmates use it. It is complusory for all the 4U students in my school.
yeah, ummmm.......Let me tell you. Excel for 4U is absolutely useful. Believe me. Once you use it, u will love it.Li0n said:buying prelim books is such a waste of money
I used it. I didn't love it. But then textbooks have never really done it for me, especially in 4u, because I find the explanations to be inadequate, so I just go blindly into the questions and mess around until I get the right answer, then remember the method I used for next time.psych_girl said:yeah, ummmm.......Let me tell you. Excel for 4U is absolutely useful. Believe me. Once you use it, u will love it.
That's something likeLi0n said:you should do the idiots course mate, they learn quad formula there ROFL~@!?>@!?.no.
I'll ask LazGrey Council said:a request to the mods
STICKY THIS THREAD!
ffs, people ask this ssoooo damn much, it's not funny.
PLEASE. this thread is as good as any of them.
When asked to prove quad formula I just work backwards.Slide Rule said:That's something like
y=ax^2+bx+c
lety=0
0=a(x+b/[2a])^2-b^2/[4a] + c
a(x+b/[2a])^2=b^2/(4a)-c=(4a)^-1 * (b^2 - 4ac)
(x+b/[2a])^2=(2a)^-2 * (b^2-4ac)=(b^2-4ac)/(4a^2)
x+b/[2a]=sqrt[(b^2-4ac)/(4a^2)]=+sqrt[b^2-4ac]/[2a]
x=(-b+sqrt[b^2-4ac])/(2a)
Dammit. It is a lot easier to complete the square on paper.