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This. There's a few formulas that I found hard to remember until I actually derived them myself, but sadly, it really comes down to who can write the best responses using the information they've memorised from the textbook.

Extension subjects don't have band 6/5 etc, they have E4, E3, E2, E1. Nevertheless, according to atarcalculator.com, 90 in 2 unit scales to 95.55, while 80% (40/50) in MX1, scales to 95.05. So yes, they're more or less the same.

From what I've seen, the concepts themselves are interesting, but you don't need to actually go into any detail so it basically becomes a competition to see who can memorise how to use all the formulas and write the best essay based off a bunch of dot points in the syllabus. What I dislike the...

Physics is awesome. HSC physics? Not so much.

Re: 2012 HSC MX1 Marathon First one: <a href="http://www.codecogs.com/eqnedit.php?latex=LHS=\frac{\cos x}{1@plus;\sin x}\\~\\ =\frac{\cos x(1-\sin x)}{1-\sin^2x}\\~\\ =\frac{1-\sin x}{\cos x}\\~\\ =\frac{1}{\cos x}-\frac{\sin x}{\cos x}\\ ~\\ =\sec x-\tan x =RHS" target="_blank"><img...

Re: 2012 HSC MX1 Marathon Oh right, I'd assumed that since it was in the MX1 section you would be able to do it using MX1 methods. (Nevertheless, I still can't do it :p)

Re: 2012 HSC MX1 Marathon If it's not too much trouble, could somebody please post the working out for this question? I can evaluate the integral, but I can't get from the question to the integral itself.

Oh my god. I'm all for enthusiastic teachers, but this is seriously too much. He sounds like he's trying to sell me something! While they certainly cover all the content that's required for the HSC they also cover lots of stuff that's outside the syllabus. That's not necessarily a bad thing (I...

Just thought I'd make that a bit nicer to read: <a href="http://www.codecogs.com/eqnedit.php?latex=\\ x=\cos 2t=2\cos^2t-1~~~~~(1)\\ y=\cos t\\ \therefore y^2=\cos^2 t~~~~~~~~~~~~~~~~~~~~(2)\\ \textrm{Subbing (2) into (1):}\\ x=2y^2-1" target="_blank"><img...

Anybody know of any online lectures that directly address the HSC Physics syllabus - something similar to what Nigel Simmons does for maths. The reason I ask is that I'm beginning to dislike my teachers teaching style and so I need an alternative that isn't a textbook. I've used Khan Academy...

Re: 2012 HSC MX2 Marathon <a href="http://www.codecogs.com/eqnedit.php?latex=\\ z^5=1=cis0=cis2k\pi\\ z=(cis2k\pi)^{\frac{1}{5}}=cis\frac{2}{5}k\pi_{(k=0,1,2,3,4,)}~\textrm{(By De Moivre's theorem)}\\ ~\\ z_1=cis0=1~~~~~~ z_2=cis\frac{2}{5}\pi~~~~~ z_3=cis\frac{4}{5}\pi~~~~~...

Me too please :)

Re: 2012 HSC MX1 Marathon I concur

Re: 2012 HSC MX1 Marathon <a href="http://www.codecogs.com/eqnedit.php?latex=\\\textrm{Equation of the tangent:}~y=tx-at^2\\~\\ \textrm{Finding points of intersection:}\\ x^2=-4a(tx-at^2)\\ x^2@plus;4atx-4a^2t^2=0\\ \begin{align*} x&=\frac{-4at \pm \sqrt{(4at)^2-4(-4a^2t^2)}}{2}\\ &=\frac{-4at...

You get together with a bunch of your mates and spend a few hours beating each other with clubs.

Re: 2012 HSC MX1 Marathon <a href="http://www.codecogs.com/eqnedit.php?latex=\\ \begin{align*} A &=\left|\int^{2}_{-4} (x^3-12x@plus;16)dx\right|\\ &=\left|\left[ \frac{x^4}{4}-6x^2@plus;16x\right]^{2}_{-4} \right|\\ &=\left|\left( \frac{2^4}{4}-6\cdot 2^2@plus;16\cdot 2\right)- \left(...

But seriously, that. For me, the other reason I like it is fact that it gives you the ability to reduce something incredibly complicated into something really simple and in a sense, beautiful.

maffs is 4 figgits lawl

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