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Re: HSC 2014 4U Marathon Here is a great question from the HSC a while back.

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Re: HSC 2013 4U Marathon Here's my go at the question. I'll just do the left inequality and presume the right inequality is similar. \frac{x^{n+1}-y^{n+1}}{x-y}=x^n+x^{n+1}y+...+xy^{n-1}+y^n =y^n(1+\frac{x}{y}+\frac{x^2}{y^2}+...+\frac{x^n}{y^n})>y^n(n+1) As \left ( \frac{x}{y} \right )^k>1

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Hi. My name is Nathan and I am offering 3/4 maths unit and economics tutoring to anyone in the inner west and city areas. Relevant Credentials: ATAR: 99.55 Extension 1 - 98 Extension 2 - 97 Economics - 96 Rate: $35/hr (2 hr lesson – if required to travel) $25/hr (2 hr lesson – if at my...

Dam. Got 116/120 (did it as practice). Got 1 wrong in Q1, 2 wrong in Q2, 1 wrong in Q4.

I'm looking at Discrete Maths 1081 and I was wondering whether or not I have to go to all the lectures.

Yeah I did and I'm looking at the handbook. But it doesn't tell me what courses I need to do.

Can someone tell me what the core components/courses of Commerce/Adv maths is at UNSW. I can't find then anywhere.

I'll put up a question for now: Show, by mathematical induction, that |z_1+z_2+⋯+z_n |≤|z_1 |+|z_2 |+⋯+|z_n |

Sorry to hijack this thread OP. But what do you think are my chances of commerce at unsw if my atar (with bonus points) adds up to 99.95?

Re: FAQ: Late Round Offers What are the chances of getting an offer in normal commerce in Usyd/UNSW?

I've attached my working to this question. Hope it helps. If you want help and to avoid these spammers, PM me.

Is this the f(x) = f(x-a) and the odd/even stuff?

You don't have to show that because if I was less than 2, the I(n-2) would be negative and therefore the equation won't work will just keep on going. I0 is the last value for reduction formulaes

Hi. I am willing to tutor economics for you. I received 96 in economics, with the top examination mark in my school. My ATAR was 99.55 btw. I am offering essay practice and marking, as well as help with presentations and tests. Please PM me ASAP.

Can someone help me out with these questions. 1)Use z^n + z^-n = 2cosn@ to solve 2z^4 + 3z^3 + 5z^2 + 3z +2 =0 2) Solve (z-1)^4 = 16(z+1)4

ax^3+bx^2+cx+d=0 Let roots be \frac{a}{c},a,ac Using product of roots... a^3=\frac{-d}{a} a=\sqrt[3]{\frac{-d}{a}} Subbing it back into the equation, as a is a root a(\sqrt[3]{\frac{-d}{a}})^3+b(\sqrt[3]{\frac{-d}{a}})^2+c(\sqrt[3]{\frac{-d}{a}})+d=0 -d+b\left (...