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You where there, and you didn't say hi!? D':

Do physics

Twas good.

Guess we'll have to wait and see.

1. a) Use v=f\lambda b)Draw the waves. c)You add the waves together. d)The wave would have shifted a bit, draw it like that. 2 and 3. Use \frac{v_1}{v_2} = \frac{sini}{sinr} = \frac{r_1}{r_2}

Re: 2012 HSC MX2 Marathon \int\frac{1-\sin^{12}x}{\cos x}\,dx = \int secx - \frac{\sin^{12}x}{cosx}dx \\\\ = \int secx - \frac{(1-\cos^2x)\sin^{10}x}{cosx} dx \\\\ = \int cosx\sin^{10}x dx = \frac{1}{11}\sin^{11}x + c

Re: 2012 HSC MX2 Marathon I'll post what I did. $Let $I = \int^\frac{\pi}{2}_0\frac{x}{tanx}dx \\\\ = xln[sinx]|^{\frac{\pi}{2}}_0 - \int^\frac{\pi}{2}_0ln[sinx]dx \\\\ = -\int^\frac{\pi}{2}_0ln[sinx]dx \\\\ = -\int^\frac{\pi}{2}_0 ln[cosx]dx \\\\ 2I = -\int^\frac{\pi}{2}_0 ln[sinxcosx]dx...

Re: 2012 HSC MX2 Marathon You did that fast, took me ~10mins to get it. How did you do it?

Re: 2012 HSC MX2 Marathon $Next one, Solve:$ \\\\ \int^\frac{\pi}{2}_0\frac{x}{tanx}dx

Re: 2012 HSC MX2 Marathon $Find $ \\\\ \int\frac{x^3 e^{x^2}}{(x^2+1)^2}dx

Nothing but.

Oh well that's disappointing :(

Ooh ok. I have seen some of his vids on yt. I want him as a lecturer. :p

Where is this thread?

I know with physoc and socs you are automatically in if you do phys and chem courses, but not with maths, so it varies with each society.

I had a big day today, mentoring, science stuff, campus tour. Had to walk up Basser Steps so many times... We were meant to go to Mathew theatres for some adv sci thing, but the person who took us there had a sheet of paper that said it was at Webster theatres. So we went there only to find it...

Orly?

Rudd left :(

It costs money :(

Well that'll come in handy then. I hope they are a challenge though.