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Hey all just posting to ask for your help with the simplification of a q i am working on. i have the solution infront of me, i just cant see why it works (as i dont have a very good math background) I have correctly gotten the solution down to: n!(n-5)!5!*3^(n-5)...

with all the ones ive done, when two places are specified, i keep going until the i get to two decimal places that cease to change and then round those.. ie the halves (that i have pulled out of my head from nowhere) proceed like follows 2.36569978 2.3256798 2.3536799998...

I would do anything to avoid schoolies... ive never actually gone with the intent of going to schoolies - ive just accidently happened to be in places peeps decide to invade for schoolies. I accidently ended up in surfers one year it was on & in the space of an hour had at least 5 different...

Sweet I still have a chance at med then lol. Thanks heaps guys. re Hurri - yes I do have this years practice q's, they arrived today but dont seem to have enough questions to reliably "practice on" ..hence the quest for more questions & the discovery of those nasty findashapes. thanks...

Does anyone have any techniques other than "practice" to approach the "find-a-shape" questions in the umat ? eg this q here http://www.superkeeneye.com/trial/question9.jsp?frmLaunch=true The regular shape problems i've realised that you can easily approach them with the idea of simple...

dont know about the Vanadium Cell but if u know the chem of the lead acid cell why not go with that and a button cell, with the chemistry being almost identical (the cathode is the only different bit) you can save memorising something different :)