Recent content by FinalFantasy

oh with that first question... i just realised i just did lots of stuff and its not wat im meant to do... hehehe

1. cot(A+B)=cos(A+B)\sin(A+B)=[cosAcosB-sinAsinB]\[sinAcosB+cosAsinB] 1\tan(A+B)=(1-tanAtanB)\(tanA+tanB) =(cosAcosB-sinAsinB)\(sinAcosB+sinBcosA) 2.(1-cosA)\(1+cosA)=(1-[1-2sin(A\2)])\(1+2cos(A\2)-1) =tan(A\2)

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^yeap i agree physics now is juz memorise chunks of info, won't help ya in maths at all!

u still got a good chance! especially if ur ranks are good and subjects are good

yea as long as ur rank is still fine... and the ppl better ranked than u do good in da HSC as wel as u

^oh u made a new name lol silly me -_-

wait... u r confusing me!! so r u the son of that Buchanan on the extension 2 maths forum? and also, before it says u have 4 posts but ur latter post, it says "Tobes New Member Join Date: Nov 2004 Posts: 1" howcome before it was 4 post and now it is 1 post? u didn't seem to...

ooer so ur Buchanan's son or something? I am not "leung" if you were referring to me...

hey Toby, are you related to the Buchanan at the Extension 2 Mathematics forum?

^that's true..

it's too good to not steal ;)

hahaha but i like Hong Kong!!! and so ur chinese eh? can read my HK:p

hihi! (cosθ+isinθ)/(cosØ+isinØ) =(cosθ+isinθ)/(cosØ+isinØ) * (cosØ-isinØ)\(cosØ-isinØ) =(cosθcosØ-isinØcosθ+isinθcosØ+sinθsinØ)\(cos²Ø+sin²Ø) =(cosθcosØ-isinØcosθ+isinθcosØ+sinθsinØ) =cos(θ-Ø)+isin(θ-Ø)

wow, first time I see someone here with Chinese username! I'm gonna try make one too!