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Are you kidding? 4 marks for sketching an ellipse x^2/a^2 + y^2/b^2 = 1 (and of course stating the eccentricity, finding focii, directries and etc), in my opinion, is ... not difficult. And the proofs are pretty much all generic (eg. proving the focal property etc).

Well by definition, the cosec function has gaps in its domain (namely when sinx=0). So if f(x)=cosecx then sketching y=1/f(x) will mean that there would indeed be open circles at the x-intercepts as they are not included in the domain. Also talking about whether the cosec function is defined...

Re: Ext 2 Past Papers + Answers The MBank that teachers have access to do have solutions, as far as I know.

Um, as stated, Fermi didn't actually observe the experiment... I think my teacher did say that it was the experiment he setup at the squash court... don't rely on that though, it's memory from last year and I haven't revised my notes.

I think that 2U maths should be compulsory. But this is only because English is compulsory, so yeah...

Well technically 'r' isn't the same as 'R' and 's' isn't the same as 'S'... Anyway, ignoring char cases... No of ways = (6*5*4*3) - (4 * 3 * 4C2 * 2!) = 216. New question: In a certain cricket club there are 15 players available for selection, including 2 Smith brothers, 3 Brown brothers and...

Personally I like the current HSC syllabuses for 2U-4U, I don't know why they should change it... but that's my opinion only I think :) Maybe some slight modifications would be good, but I don't think changing it majorly if that good of an idea.

Yes I know I was being sarcastic for the troll.

You should typically allow two terms of revision to ensure a good mark in the external HSC exams. Therefore you should've been finished by the end of Term 1. You will be serverely disadvantaged by losing this revision time. I guess you'll have to make up for it by working extra hard from now.

Probably 3U.

Not true. I hated conics, yet I liked 3U parametrics.

The Extension 1 is easy. I liked all topics.

lol Fail. Try something else to promote your "tutoring" services.

Or you could've done Area rectangle - integral... but that'd require knowledge of integration by parts...

I'll assume that you mean the area between y=2, y=4, the curve and the y axis... y=lnx e^y=x Required area = \int_2^4e^ydy = e^4-e^2 = 47.20909393... units^2

Coroneos died in 2005.

This is wrong. You need to take the sign that the initial conditions given. ie, if velocity was initially in a positive direction, then you take the +ve case. This is also wrong. Max acceleration occurs at the end points of motion.

That's a very minor point.

Teacher incompentancy is the main reason why that doesn't happen. Also another problem with the old Physics course was that they ran out of questions to ask. They asked the same thing in three difference ways in the final HSC exams in the 20 or so years that it ran.

One approach is long division, which is in Extension 1 polynomials.