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The probability that it rains on any particular day in Brisbane is \frac{2}{3}. What is the probability that it will rain on only two days during a whole week in London and these two days are consecutive?

Find the general solution of the equation sin3x + sinx = cosx

Solve the equation tan^{-1}3x - tan^{-1}2x= tan^{-1}\frac{1}{5}

Had no idea it was possible to accelerate a 4U subject LOL gg OP, you're smart.

Wait wait, how are you doing a 4U subject if you're still in prelim?

Re: 2015 HSC Economics Marathon But won't they link sooner or later? ie: as productivity increases, aggregate supply will shift to the right as more output is produced per unit of input. With firms producing more efficiently, cost of production will fall, leading to a fall in the price level...

Respect.

It really depends on what aspect of discovery you wanna focus on. I originally started with 3 related (kudos to teacher) but two of them were piss-poor and focused on physical discoveries while I wanted to compare emotional/ psychological discoveries with my core (because that was how I was...

Just to clear things up, or make the water even more muddy (becos lol. that seems to be what i do best : P). We're not good friends. We've never been good friends. When I talk to him I don't even fucking know if I'm talking to a male 2015'er who has a weird sense of humour/logic or a...

Oh god no. Not the feature article. :\ But why would they troll us lol their eyes probably bleed enough from reading our crappy stuff written at 2am in the morning.

Thanks Integrand! :) $Q3. Find $\lim_{x\to 0}\left (\frac{x^2}{2-2cos2x}\right )

Yooo :) So in prep for trials, i managed to stub my metaphorical brain into COUGHalmosteverythingCOUGH. Will be much appreciated if you guys could give me hints and tips to approaching these questions (and a walkthrough if you're feeling particularly generous). Or if you'd just like to have a...

Except what happens after is the break magically extends itself again, and again. And all of a sudden. It's morning. (i crie)

lol trials. hello stress. How's everyone prepping for math/ eco? And grats Hawk haha

Model student right there ahaha : ) From experience, this is what happens in my head. But when you try and put it into practice... ಠ_ಠ

I'm assuming for a subject of that calibre, most of the papers should be relatively similar in terms of difficulty (since they're all prepping you for the HSC). Obviously some schools might write harder ones (usually selective, to separate out the ranks). Good luck, OP :) EDIT: Also, since you...

Yep and yep to pretty much all your questions. Because the syllabus is vague at times, whatever you feel you 'may' need to know is probably something that you will need to know. If the syllabus doesn't mention one thing entirely i.e positron emission (in nuclear), then you won't need to know it...

Whoop, thanks guys : ))

Ask the math god Integrand : P Feeling the pressure of the HSC just recently tbh. Not getting enough sleep haha.

More or less finished but it's up to such a shitty standard... lol.