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Thanks :) I had a similar idea considering 10 elements {2,2,2,3,3,...,7} and then choosing from there but I couldn't figure out how (tried to do like 10C0 + 10C1 + ... + 10C10 but then didn't know how to remove duplicates) Anyone know how to do the the one in the opening post?

Why?

Lol... its clearly on the BOSTES site that they consider relative gaps. http://www.boardofstudies.nsw.edu.au/hsc-results/moderation.html

Also got this Q: Considering 315000 = 2^3 x 3^2 x 5^4 x 7, find the number of positive divisors of 315000

I can't do c) Any ideas??

Idk about others but I only bring scrap paper to school (I don't own books for ANY subject). Can't stand writing things down. Why not just type @ 120wpm to save time

idk man I've made it to trials without knowing my solubility rules...

Most people go through it. If anything, think of it as bad karma because you didn't stay consistently on top of your work throughout the year.

I was hinting at the answer. You have to look at the question and extract information (Stygian answered it- m(PA).m(PB) = -1)

What's the condition for there to be a right angle at P?

Security period on the commercial papers. Schools are not allowed to hand back those exams until after the security period to ensure that students who do the exams late do not get to see the paper unfairly

+1 its called osmosis mate iStudent works everytim. study when you sleep

If you're first you will get the highest exam mark in the HSC for your assessment mark. There is no way you can be "pulled down"

Today I learnt you could resize a table in Word... -_- so many years of pain

Yeah I picked up on that one hahaha :) Thanks !! Raelly appreciate it

State rank is definitely NOT solely on external

Also got a Q, am I allowed to just quote the AM >= GM inequality?

Anyone got general tips; im just learning inequalities? It's so hard -_- and I don't know in which direction to think Edit: Atm I'm just doing mass questions to "memorise" the methods for doing them

There might have been people who have not done the exam yet (postponed) lol

i thought i was playing the lotto in those last 5 questions