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thanks heaps!

does anyone have the simplified proof reasons for circle geo handy?

just get full marks and you will never have to scab

that is correct

i'm catching a train into central, and then catching the train out from there

bleak, if you're anywhere near as close to as good at chem as you are at maths, you are all good mate don't stress.

my friends brother got into UNSW with 97.15 and 80 umat. obviously ripped the interviews. he may have been classified as partially rural so that would have probs helped

Re: HSC 2012 Marathon :) nah it wasn't a troll, i have just had my definition of integration wrong the whole time for exponents lol. its only e^f(x)/f'(x) for linear factors.... my bad

Re: HSC 2012 Marathon :) the question is, why when integrating e^ln(x) through both methods e^f(x)/f'(x) and x yield different results?

Re: HSC 2012 Marathon :) LOL comments removed deswa and nightweaver hehe

Re: HSC 2012 Marathon :) but 4srs, i know that e^ln(x)=x. but why can u not use e^f(x)/f'(x) to integrate instead. Is it something to do with the domain of the function?

Re: HSC 2012 Marathon :) ok now u guys can lol at me, does that give me permission to lol at this?

Re: HSC 2012 Marathon :) did i just make an extremely rookie error?

Re: HSC 2012 Marathon :) why doesn't the general formula work to integrate integral e^ln(x) = e^f(x)/f'(x) = e^ln(x)/1/x = x^2 =/= x^2/2 i know that it can just be simplified to x, but im wondering why the formula doesn't work

Re: HSC 2012 Marathon :) not sure if srs -_-

Re: HSC 2012 Marathon :) yeh quadrants of circles dont exist

Re: HSC 2012 Marathon :) k! - 1

Re: HSC 2012 Marathon :) 1/5 tan^-1(x^5)+c?

Re: HSC 2012 Marathon :) the amplitude is just 5. It is because the sine function on its own is maximum +- 1, but we are multiplying it by 5. SHM is defined by x=asin(nt+e) where a is amplitude, period is 2pi/n and e is a constant. NIGEL SIMMONS. look him up. he is the way forward.

Re: HSC 2012 Marathon :) thats not too bad, typing up working now. ok i wont lol