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it is still valid if a or b = 0 therefore line 2 of your working out is incorrect |x +b| or |x+a| can be = 0 therefore line 1 of your working out is incorrect

just wait until ur entitled to centerlink benefits

they must be strictly positive in that the solution is positive and also not equal to zero (since a=/= b). LOL iono. :L

if i were you (i.e a more creative person) then i would choose chemistry (has almost no maths excepft for a few calculations) ext1 english (its just a few extra essays and texts) and also history (it suits people who are into literature) but thats just imo

yea thats y the cambridge ext1 books get smaller. year 11 compared to year 12 ext1 book is huge

From what I've heard school rank is pretty important unless you're consistently coming first. For example, say if your coming 3rd (internal rank) and you come 2nd in your externals with 90% and another guy got 89% (coming third externally). your overall will be half of your own external mark +...

i was in your position during the end of year 11 deciding whether or not to drop 3u. even my parents told me to drop. but for some strange reason i stayed and worked really hard an now im in the top 3 so I reckon you should at least try ext1 until first term of yr 12 then based on your topic...

lol agreed an 88% for chem in my school would get you into the top 15-10 :L

ens chem phys three days =='

yea thats what you do in these types of questions. on working out paper u make em meet in the middle and on the test paper you play with one side to meet the other (i.e. working backwards from your working out)

mx1 3/22 maths 2U 9/90 chemistry 4/40 engineering studies 3/14 physics 6/39 eng adv 13/94 school rank infinity first English test put me in the top 3 second English test i got eaten tbh hsc year hasn't been as fruitful as expected btw nice ranks elliottjohnson

holy what ? my comp was down for a whole 3 days how could i have posted? wtf and no i do not currently attend NSBHS and those ranks describe a true genius man. I admire the hackers for cracking my password >:( btw upgraded to windows 7 woot :p

i dunno.. studied really hard i guess ~_~

Advanced English 1/160 4u Maths 1/82 3u Maths 1/98 Chemistry 1/80 Physics 1/71 Legal Studies 1/70 I attend North Sydney Boys High School. Thanks.

whos this ?

can't imagine how much he gets paid

yea unfortunately confirmed

hamlet by u know who :S

11 is best imo. its not too much time wise whilst giving you some form of back up. free periods are a bonus =D

(e^x+1)/(e^x/2+e^-x/2) = (e^x+1)/(root e^x + 1/root e^x) = (e^x+1)/((e^x+1)/root e^x) = (root e^x)(e^x+1)/(e^x+1) = root e^x = e^x/2 integrate that = 2e^x/2 + C now teach me how to use equation editor