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lol legit feel like ripping my phys success one. I'm doing the whole papers, because I legit have this OCD tendency to want to do the whole paper :/

gg RIP phys. decided to wing it, cos I have 15 3u maths hsc past papers left to do :/

it wasn't that bad :/

doing those right now :)

bump bump! Carret? Trebla? thanks those who have posted so far :D

thanks anyway drongoski! :) anyone else?

try the question and get it out, then come back to me. you'll understand what I mean when you actually try to fully work through the Q. :)

lol Drongoski, I see you lurking. some help please, my pal? :D

This Q is from 1999, if anyone needed to know. :)

So I am trying to do this Q: and the markers said this: So, so far, I have done a separate expansion of both (1-x)^n AND (1 + 1/x)^n, as well as an expansion of (1-x)^n * (1 + 1/x)^n. And I can see from looking at the first expansion, that I need to compare coefficients of x^2...

I think last year's aligning was a bit more generous than usual :/

+1

I think 88 --> 97 is slightly too lenient. 96 to be safe.

okay thanks guys! :D

anyone willing to confirm??

anyone??

I assume you're talking about Q27 - the extended Q. For extendeds, imo, they don't care that much about the key term 'discuss' if it is used. of course, you need to talk about both positives and negatives - but it is way too idealistic to expect a 50/50 balance. So no dw about it, as long as...

So, here it is: I'm concerned about part ii). I'm looking for the advice of people such as Carret, Trebla, RN, Braintic and Drongoski in particular. What would be a satisfactory method for it? Because saying (0,0) is a minimum and the only stat pt as your reasoning is apparently not enough...

haha very funny indoz! :lol: haha how did you go today?

that's a much neater way than mine haha