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i did the last 1 a while back simultaneously solve for two of the 3 lines then realise that the third line satisfies the equation. so all three pass thru it

k my methods pretty fast draw vectors of unity 5 with mod 1 use tip to tail then ull find that vector from P1 - P0 is w-1 so to find mod of w-1 let w = cis2pie/5 cos its roots of unity remember each root rotated by cis 2pie/5 then mod is square root of{ (cos2pie/5-1)^2 + sin^2 2pie/5} use...

averaging low 100s... under 3hr conditions... done from 90-05 its probably the only subject im not screwed for

actualli u dont need previous parts, i just used a vector, pythag identity, and roots of unity (DMT)

now that theyve asked pie and e what other irrationality proof culd they ask for this year, thats within our realm

ive explained it in the banked tracks thread

if it says vehicle travels at speed > design speed then for train the pressure is exerted on the outer rails on the outer wheels which gives friction F and so friction is travelling towards centre for a bike it means the cyclist needs to lean further inward because track isnt steep enough so the...

fk, i havent done banked tracks in ages just to clarify, u take mv^2/r as a positive horizontal force towards the centre of motion right? so the net sum of the vectors pointed towards the centre = mv^2/r i.e. ==> Nsin0 Fcos0 <== <== mv^2/r wuld mv^2/r = Fcos0 - Nsin0

20/20 bnw was a joke 18/20 bit lacking here 17+/20 lacking as well trials got 181818 go to nsb

theres a faster way to prove irrationality of pie, we learnt it in yr 10... its also contradiction but much faster

thanks guys fk xia, u live on these forums man =/

these are my marks on report so dunno if scaled or not 89 eng adv 90 3u maths 94 4u maths 93 eco 88 jap 45 jap ext i go to north sydney boys =/

these are my marks on report so dunno if scaled or not 89 eng adv 90 3u maths 94 4u maths 93 eco 88 jap 45 jap ext

wat did u guys get for this? i got 114.. im surprised cos i didnt do silly mistakes was this a comparatively easy test? they had alot of lead-up questions, and i hope 06 will have a similar structure.

i dunno abt u, but 69>70

bahhaha though it was an easy paper, i cant really say it was enjoyable... wtf

i cbf to read the above, but i think eco is interesting but very simplistic, i say this because i dont really study for it but rather i make up shit, and it seems to be working... i got 93% in CSSA and 5/50something at nsb

hahahah its xia