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pleasure :p

yes... half the grade got docked a mark for that. they won't do that in the hsc, well they??? they better not... it's absurd.

Just look at your text books. And make sure you know the 2U ones well. They often chuck harder 2U stuff into 3U.

using a substitution would probably enable to see it much better i suppose. It's regarded as the safe method. IMO, Just practise heaps and you'll be able to tell when these type of stuff come around.

HOW TO REMEMBER just think for arithmetic sequence sum = 1/2 * total number of terms * (first term + last term) eg. if you have like 1, 3, 5, 7 or something you could pair them off like 1+7 = 8, 3+5 =8 so you'll have in this case 4/2 = 2 pairs of (first term + last term) As...

oh yeah... sique mentioned that before in the other thread i think.

The answer is 7! x 8C4 You have four vowels: aeeu you don't need to arrange them, they have to be in that order You have 7 consonants: bccmnnr The number of ways of arranging them = 7!/2!2! Imagine you space out these consonants in one line | X | X | X | X | X | X | X | with X...

a bit more, 4 classes this year. They want to ensure that people who do 4U is capable of it since some people may be struggling with it. Although 4U is scaled quite well but doing badly in 4U won't get you anywhere either, just like in any other courses. So I think sometimes having limits is a...

OR yr11s....... come to moi for tuition =p

greetings, i see you've uploaded the intranet... :p would be of great help to many... coolz

Wow :p this person's got connections.

Waiting eagerly still :p

Haha.... sorry about that Takuya. Books help, but never as much as explanations from native Japanese speakers. Oh dear, in this case I should apologise to everyone :p *BOW* gomen nasai Thanks for all your advices Takuya

I agree... make a special section for olympiad.... or put it in the yr 11 section....

EDIT: Denaturation - see phenol's explanation Electrophoresis - used to separate macromolecules like protein, carried out in gels. Gas chromatophray - My apologies... it does NOT have anything to do with denaturing. What i meant to say was gel filtration chromatography which is also...

Well, relative to other selective school 3U trial papers this yr, i gotta say Ruse paper 2003 was easier... in the sense it does not have any tricky stuff (apart from the encumbrance question that killed a lotta ppl.... and um, that interest question)... probably easy to lose marks for stupid...

Yes yes... the appearance of "mercury" grabs my every attention :p

hontou desuka? watashi wa kagaku no shiken wo owaru toki ni tanoshimi ni shiteiru yo! Sore wa watashi no saigo no shiken dakara... shiken, mou mittsu owatta kedo...

Yeah, my teacher covered it, except I want to know about it in a bit more detail :P I'll have an attempt at it after some research and help: THE USAGE OF "NODE" AND "KARA" I believe "node" to be a bit more formal than "kara". And "node" has more of the implication that the consequence...

watashi mo "JaX".. haha... okashii... toiu juugyou wo shiteimasu :p kurasu ni san nin dake iru... omoshiroi kamoku