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Re: HSC 2013 4U Marathon I think there is a much simpler way to do this- btw who are you? A proof would be along these lines x^(1/3)+x^(-1/3) is rational => (x^(1/3)+x^(-1/3))^2=x^(2/3)+x^(-2/3)+2 is rational=> x^(2/3)+x^(-2/3) is rational=> x(x^(1/3)+x^(-1/3))=x^(2/3)+x^(4/3) is rational=>...

Please tell me you're joking.

Re: HSC 2013 4U Marathon pretty much except u have to discard those 100 solutions since we have to have distinct a,b,c. Otherwise you are correct.

Re: HSC 2013 4U Marathon Three distinct numbers a,b,c are chosen at random from the numbers 1,2,...100. Find the probability that a,b and c are in a geometric progression

are they marking EE2 now? Or do they wait for the rest of the HSC exams to start?

4u please

When you have that 5-7 marker that asks you to contrast how two of the texts represent some idea about belonging, how should one structure a response to that should you just spend one paragraph on each text, and make reference and comparisons to the first text when discussing your second text...

well because the hsc english system has become so prone to memorised essays and the like, it shouldnt be compulsory in the form that it is however, i think english should be a compulsory subject until year 12, and this is for the primary reason that the development of an argument, the use of...

re: HSC Physics Marathon Archive Almost a correct solution However, for one complete revolution the distance is r2pi. It's a minor error, probs only lose 2 marks Although in the future try not to just use formulae without thinking:smile:

1.i go to SBHS 2. i give my teacher a 2/10 3. my maths department is a complete joke. a bunch of idiots who cant complete basic conics questions 4. i use my tutoring 100% and normally sleep in class I am in the top 10 of maths at SBHS, in spite of the atrocious teaching

mate just give the questions and i will supply the answers supply-demand-equilibrium

do you know what an alpha particle is? Do you know what an ion is? Do you have access to a periodic table and a data sheet? This is all standard information that you have to manipulate.

mate not a bad effort so far, but since u dont have the 4u maths or the lovely physics and chemistry, you will battle hard to get the high marks I think that you currently stand at an ATAR of approximately 98.85

Re: HSC 2013 4U Marathon prove that the curves x^2 -y^2 = c^2 and xy = c^2 cross at right angles

subjects?

Re: HSC 2013 4U Marathon so cool!! =)

you can use the word "i" if you want to get a 12/20. btw, u can use personal pronouns if the question specifies

if you talk shit, you'll get hit

i do latin. up the cicero

Re: HSC 2013 4U Marathon a classic Andrei Kiselyov problem. very good mr harper, very good