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let a = tan^-1 (1/2) + tan^-1 (1/3) then take tan of both sides, and use tan(a-b) formula on RHS then you get tan a = some number solve for a

My physics teachers and others complained to BOS abt how that dot point was bs, cos einstein and planck never did argue. they modified the original dot point, and now its even more ambiguous. but anyway, hope this helps.

depends on what the question asks most 4u questions give you a graph, or ask you to draw one (2 marks), and then manipulate it. ie take absolute value, sqrt f(x), ln f(x), etc (2 marks each) you don't have to include turning points or anything else, and only use calculus to help you find the...

i believe both round interviews are the same and selection for 1st round is based on a combination of predicted UAI and UMAT, if thats what you're asking. here are last years figures: http://notes.med.unsw.edu.au/home/medweb.nsf/website/2.2.latestnews_local

does anyone know how to invert the colours of pictures in a word file? ie change black to white, white to black. or do i have to resort to paint?

= 2x-2 / x² - 2x + 2 - 1/x² - 2x + 2 = 2x-2 / x² - 2x + 2 - 1/(x-1)^2 + 1 = log (x² - 2x + 2) - tan^-1(x-1) edit: from 1 to 2, ah couldnt be bothered, i think you can do it yourself

rank isnt the ONLY thing that matters. the gaps between students in school assessment marks also matters.

this would be done better multiplying top and bottom by 1 - sinx i think

I have a problem: My lecture notes are pdf files made from powerpoint slides. The slide format used means there are some large borders/margins which are dark coloured. Anyway, I want to print out my notes, but I'll be wasting heaps of ink if I do, even in black and white. Can I do...

great post thats pretty much all you'll need to know for 4u inequalities guys :)

arithmetic mean >= geometric mean but can we assume the result in 4u david? i was under the impression it had to be proved, as most of the inequalities are actually just variations on am-gm

what subjects?

I agree it is a hard topic, so I would much prefer it to be taught earlier. And yes, looking at other schools' trial papers, most schools leave motion until the end.

if my memory serves me correctly we had done integration, complex, motion and polynomials.

ok uni restarts tomorrow so i'll be off for abt 8 weeks so here's something interesting (note: this is quite tricky, so only capable students should attempt to follow) oh and yes, this is by Dr Pender

really? that's interesting. i thought conics was a bit rushed last year, but i reckon its easier than circular motion, so i don't know about the swap.

good luck on half-yearlies hopefully it wont be a killer like last years

which part of the anwers exactly were you having trouble understanding?

go to the UAI guidance forum, i think there may be an FAQ on this issue somewhere

umm i have a worked solution to this question, but ill let others try first