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I think it's on a different thread on the Mathematics Extension 1 thing.

No of course not, they would not do that. I just feel like they should of changed the question if they could. I'm not a conspiracy theorist haha.

Yeah that would be really interesting, haven't seen a question like that before. But yeah I noticed that while practising and was very surprised. And yeah the papers are written in advance, but surely it wouldn't be much effort to switch "bomb" to "cargo" or something similar.

BOSTES should totally do that for a projectile question one year. "Tim throws a knife from ground level at John, who is 1.8 metres tall and is standing on a chair 1 meter high, 10 metres away. If Tim throws the knife at 45 degrees to the horizontal, and he wants to hit John's head, which is 30...

Yeah it really wasn't hard. I think my cohort was thinking it was harder than last year, so based off that, maybe mid 70's or something?

That's what my teacher taught us, so I'm guessing it's allowed.

Haha good ol' youtube. I've only really started to get into black metal around April, which was when Jumalten Aika was released. So I'm guessing you would have a much larger list of albums than me.

Oh yes I know Batushka, I also like that a fair bit, and I actually downloaded that Inquisition album today, haven't listened to it though. Never heard of Hecate Enthroned, I'll give them a listen.

Has anyone heard the latest Moonsorrow album? One of my favourite albums of the year. Either this or Terminal Redux. And might as well include Terminal Redux as well:

Yeah, a lot would be due to the teaching they receive in primary school. I definitely wont deny that there are a lot of people who suffer due to low IQ's or other genetic factors, but I feel like they may make up a relatively small percentage of the people who do struggle with math. And could it...

I wouldn't exactly say that. I think the reason I have excelled in math is because my parents nailed the fundamentals into me in primary school; not because I was tutored (I wasn't), I was born smarter (haven't tested my IQ, doubt it's that high if much higher than average), or anything. Most of...

Yeah I never made any notes, nor would I recommend it. Just did homework and did practice and I turned out fine. Hopefully anyway.

Oh I really like prelim chem, is HSC chem much more interesting? That would be great!

Sames. Though it really depends on many factors: your teacher, how well you are doing, how well you want to do, etc. Just consider these factors, and think if tutoring would be beneficial. Will you really improve much with tutoring?

You'd get the general solution being : t = (3arcsin(4/5) + 2pi(3n±1))/6, and from that the first time is t = (3arcsin(4/5) + 2pi)/6, or roughly t = 1.51.

Well, you can expand 10cos(2t-α) to 10cos(2t)cos(α)+10sin(2t)sin(α), and then equate one of the terms. So for example, the coefficient of sin(2t) on both sides is 10sin(α)=8, so α=arcsin(4/5). You could also write this is α=arccos(3/5) or α=arctan(4/3), and if you want to see why you can draw a...

I'm guessing it will be fine, I think it is just the pen is more easily picked up. Either way, can't do anything about it now, might as well hope for the best haha.

P(total) = P(H) + P(TH) + P(TTH) + P(TTTH) + ... = p + (1-p)kp + ((1-p)^2)(k^2)p + ((1-p)^3)(k^3)p + ((1-p)^4))(k^4)p + ... = p(1/(1-k(1-p)) (as k and (1-p) are less than one, the ratio is less than one and hence this is true) = p/(1-k(1-p)) You can check if k=1...

Also guys, this results isn't even restricted to complex numbers with modulus 1. Let a = rcis(α), b = rcis(β), c = rcis(θ) If a + b + c = 0, then r(cis(α) + cis(β) + cis(θ)) = 0 or just cis(α) + cis(β) + cis(θ) = 0. 1/a + 1/b + 1/c = (cis(-α) + cis(-β) + cis(-θ))/r = 0 as again, cis(-α) +...

Just letting you know you cannot use triangle formulas such as the cosine rule unless you are given that the complex numbers form the sides of a triangle, and even then you must use the modulus, not the complex number itself.