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    Actuarial studies?

    Is it possible to study this at Sydney? If not, what would the closest course be?
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    Accessing a wireless connection

    My work (McDonald's) has recently had wireless access installed. I know i could make use of the wireless access alone, but is it possible to get better speeds by plugging my laptop directly into the router (assuming that is what it is... haven't looked closely yet) through the laptop's network...
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    argument question

    ok i have this problem that i'm trying to figure out (z-z')^2 + 8a(z+z') = 16a^2 show that |Arg z| <= pi/4 i've graphed it, and can see that this is true - for any value of 'a' there is one point where the argument is +/- pi/4, namely the point (2a,2a) but how do i prove this nicely? any...
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    complex problem

    i have the following problem for uni and its bothering me because it seems a little too easy. is it correct to assume that since all the points lie in one quadrant and are non-zero, their sum can't possibly be 0? suppose that compelx numbers z<sub>1</sub>, z<sub>2</sub>, ... , z<sub>n</sub>...
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    two internet connections?

    OK. I have optus cable normally, but of course half-way into the month i reach the dreaded cap and get slowed down to 28K. I also have my computer networked to two others, one of which has a dial-up connection. How can i set it up so that when I download, i use the internet resources of the...
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    2003 HSC Answers

    Is anyone planning to post up some answers to the exam? Maybe some kinda semi-formal answer site can be made so that we can all check out how we went...
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    complex roots occuring in conjugate pairs

    what types of questions would actually require us to prove that complex roots of polymonials occur in conjugate pairs? i understand that usually it is sufficient just to state this rule and then say that the conjugate will also be a root. but sometimes when i see the answers to these questions...
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    complex number problem

    this question was in my trial exam and i have an answer for it but don't quite understand the process. draw a clear sketch to show the important features of the curve defined by: |Z-Z1| + |Z-Z2| = 12 where Z1=3+4i and Z2=9+4i the answer is an ellipse, with foci at (3,4) and (9,4). i can...
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    alpha decay

    i understand that when alpha decay occurs, a helium nucleus is ejected from the parent atom. but i'm wondering what happens to the extra electrons... the parent atom would loose two protons, giving it a charge of -2. is this correct or is there more to the process so that the atom ends up with...
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    james ruse solutions

    i have a copy of the ruse 2003 trial, but no solutions... can anyone help me out? thanks
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    muckup day pranks

    it's taken a while but a lot of effort is about to pay off and i should have the admin password for our school network. what ideas to ppl have about muckup day pranks? im looking at pranks rather than vandalism, but im sure ppl would be interested to here the more extreme stuff anyway. my...
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    calculating pi

    im just wondering...i know that you can calculate e by finding the sum from 0 to infinity of 1/n!, ie 1/1+1/1+1/2+1/6+1/24.... does anyone know of a similar formula for pi?
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    related rates question

    A vessel is in the shape of a right circular cone with vertex downwards and axis vertical; the height of the vessel is 12m and the radius of its circular top is 8m. The vessel is being filled with water, the inflow of water is at the uniform rate 2m^3/min. When the height if water is 'h'...
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    capped subjects

    can anyone tell me what the caps are for subjects? i know that general maths is something like 80%, but i heard today that legal studies is capped too. can anyone shed some light on this? or tell me a site that has this info?
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    parametrics

    im just wondering, in the parabola parametrics when we get a question asking us to prove that SP=SQ (where Q is the point where the y-axis and tangent at P meet), can we just use the SP=PM property of a parabola? i would have thought this is sufficient but the textbooks im using show the full...
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    blackbody

    quick question... had my trial yesterday and i was sooooo surprised how easy it was... hadn't studied nearly enough and yet answered everything with reasonable confidence. anyway, one of the multiple choice questions caught me out and it's bugging me now it was something along the lines of two...
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    AC motors

    to what extent do u guys think we need to know about AC motors? textbooks have a lot on pros + cons of induction motors, but the syllabus doesnt seem to ask for it. also, universal motors arent mentioned specifically, but would you say that since they can be run off both a DC and AC power...
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    Speed of light in a vacuum?

    I've been going over my notes for the space topic, and i noticed that very often, when the speed of light is given it's stated as being in a vacuum. If the speed of light is constant, why is this so?
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