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hey can someone please explain to me how to get a taylor polynomial of order two out of the equation x^2sqrt(9-x^2) i missed a lecture where he explained it i think it uses the fact that the expansion of sqrt(1+x) = 1 + 0.5x + ... but dont know how to do it thanks

hey i just came across a question and it asked if there is a matrix A to find A^2 and then the 2nd part said find A^-1 and it turned out that A^-1 = -A^2 soooo im just wondering if that was just a coincidence or its a general rule for matrices thanks

hey im a little bit rusty at complex, can someone please give me a bit hint as to how to solve this? \large z^2\:+\:2\bar{z}\:+1\:=\:0 thanks

\frac{1}{4}\int (u^{\frac{1}{2}}+5u^{\frac{-1}{2}})du\\=\:\frac{1}{4}\left [\frac{2u^{\frac{3}{2}}}{3}\:+10u^{\frac{1}{2}} \right ]+C\\=\:\\\frac{\sqrt{u^{3}}}{6}\:+\frac{5\sqrt{u}}{2}+C\\\\=\frac{\sqrt{(2x-5)^3}}{6}\:+\frac{5\sqrt{2x-5}}{2}+c

how fucking annoying are those lines!

STRANGER DANGER!!! k

2010 cut offs will be released after the 2010 HSC offers, how can they know the cut offs when they haven't got any marks or info to make them with? the cut offs in the uac books are the previous years cut offs

o ok, good on ya then. i personally can't handle parties sober, it makes you realise how much of a dick you must be when your drunk, but its a good thing if you can do it i guess. and i wouldnt stress too much as to what your wearing, because as other people have said, most people will be too...

my main query is why be sober??

well up until like 2 weeks before the trials i relied on MIF and only dropped below 95% except for my first assesment task which didnt end up counting for me cause i hadnt been at school for over a month cause i was basically dying. i rate MIF

haha mega dev.

i only used maths in focus as a textbook and i got 97. i dont understand why people hate it so much

you should be able to learn the formula through the excercise. if you struggle with that, make some flashcards or something with the formula on one side, and an explanation of it on the other side. also i find that learning the derivation of the formula can help. but like everyone else says...

haha shows how much notice i take of miley

fuck i hate unneseccary net speak. how is it quicker to write "realli" than "really" it's ok when you use it to actually shorten something, but this is just shit i say no-one answers him until he fixes this shit up?

probably coz they realise not everyone is so god loving that they refuse to use protection. and they also realise its better than having students dropping out and whatnot due to pregnancy. seriously, use your head ..... fucking sins -.-

i know right! haha

fixed

from the heading?

you'd hope he already knows this, =] and also, where is the integration help?