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also, know your theory, there is no use learning the equation for a tangent of the ellipse or chord of contact, or sums and differences of trig functions unless u can derive them. By knowing how to derive them you will have a much better understanding, especially if you get some whacked out Q8

you forgot that step

HSC pffft

so much emotion in your posts, you should give spiral a lesson

ok cool

mate, u deserve everything that is coming to u, as long as you get more than 4 points i will be happy. If not i will take it to the high court

Zn(s) + 2MnO2(s) + 2NH4+(aq) + 2H2O(l) --> Zn2+(aq) + 2Mn(OH)3(s) + 2NH3(aq) thats what ive got, should I include the chlorine spectator ions or not?

yes, am not studying a degree currently no idea :D

2 a) i) same as original graph ii) take all positive values of y. when y>1, new curve will be below f(x). When y<1 new curve will be above f(x). When y=1 new curve will be equal to f(x). iii) Same as ii) except also reflected about x axis b) i) Reflect all negative y values about the x axis ii)...

I know this should be in the buy and sell category, but i guess this might be the best place to find one. If anyone has a recent (09-10-11) excel success one MX2 past paper and solutions book they want to sell I will happily buy it off you, just PM me if you have one :) Thanks

Re: 1/f(x), why is there no point of discontinuity if the f(x) has a horizontal asymp my teacher said that there SHOULD be a value at that point, and i said there should be a point of discontinuity ahahah. But within the fitzpatrick solutions they never put in the points of discontinuity and im...

Re: 1/f(x), why is there no point of discontinuity if the f(x) has a horizontal asymp ahh sorry, i dont even know why i said horizontal asymptote, i mean vertical asymptote. Because today i assumed that if the function f(x) --> infinity, say x=2 is the vertical asymptote, there would be a...

If we are told to graph 1/f(x), given f(x) in graphic form, why is there no point of discontinuity on the 1/f(x) graph at the point where there is a vertical asymptote in f(x)??

Re: HSC 2012 Chemistry Marathon Does anyone know the dissociation rate of sulphurous acid as a percentage at standard temp and pressure? thanks

OHHH ok, well my textbook is shit then, CONQUERING CHEMISTRY shows the reaction wrong.. thanks

Yeh im talking about with HDPE, how is the catalyst removed. Guys i understand the INITIATOR in LDPE, but how does the catalyst in HDPE get removed from the end of the polymer chain?

Re: 2012 HSC MX1 Marathon definite integral from -1 to 1 of 1/x :)

When a catalyst activates a polyethylene monomer it bonds with it, and this causes a continual chain of ethylene monomers. the reaction is complete when 2 of these chains react together, yet how is the catalyst broken from each end of the chain? because in my textbook it shows the reaction...

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also i got 99.6 in mathematics, could i get a state rank?