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Not exactly pretty. http://www.wolframalpha.com/input/?i=integral+of+secx^%28n-2%29

sup y'all. Any rough ideas on what sort of ATAR I could get? Here are my trial results: English Advanced: 78% - 26/93 Maths Ext.1: 90% - 1/14 Maths Ext.2: 71% - 1/3 Physics: 90% - 1/20 Chemistry: 71% - 2/26 Economics: 89% - 4/27 School rank: ~100ish Thanks!

Yeah, I see that in solutions all the time but our teacher never showed us how that works, looks a lot quicker. How do you do that?

Try and establish a bit of a procedure, usually the trick is to find acceleration in terms of a rate of change of the variable you're trying to find over the variable you're given (usually v). All you really need to remember is a =dv/dt = v dv/dx = d/dx (1/2 v^2) = d^2x/dt^2 For example if...

Very close together, 2nd was 70% and 3rd 67%

Have people started getting marks back yet? Got mine back today, 71% and rank 1/3 (a pleasant surprise, the other two are crazy good usually). I'm pretty happy with that.

Paypal, BPay or at the post office...

It was all fairly normal and fine, then bam. Last question, what even.

Re: MX2 Integration Marathon Hope there's a more efficient way than Wolfram Alpha's... http://www2.wolframalpha.com/Calculate/MSP/MSP40121a2dd6ca6h54fd0800002h0773abf15c356b?MSPStoreType=image/gif&s=20&w=489&h=2660

Been looking around for a while now and I've never seen a conclusive list of what compounds/flame test colours/valencies/how many H+ ions acids give up etc. So I thought I'd start a communal list unless someone's already found something? I'll edit this post as people add things... Polyatomic...

put your subjects in here and take a look at the graph. http://hscatarcalculator.com.au/

Nobody?

Anyone?

Hi All, In keeping with the forum, what do you think I'm likely to get? School ranked around #100, I was dux of year 11 last year. Rankings are as follows: Eng Adv: 23/84 3 unit maths: 2/14 4 unit maths: 3/3 (not doing terribly, other 2 are just crazy asians who do nothing but maths)...