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I'll just quickly do c and d c) x^0 in (3-2x)^2(x +2/x)^5 expanding (3-2x)^2(x +2/x)^5 we get (9-12x+4x^2)(5C0x^5 + 5C1(x)^4(2/x) + 5C2(x)^3(2/x)^2 + 5C3(x)^2(2/x)^3 +5C4(x)(2/x)^4 + 5C5(2/x)^5) =(9-12x+4x^2)(x^5 + 10x^3 + 40x + 80/x + 80/x^3 + 32/x^5) Upon examination, the only...

When I grow up, I want to be a principle or a caterpillar. Actually, I was thinking of medicine but thats highly unlikely. I'd most likely end up doing advanced science. Hopefully 96.15 isnt too tough to get.

Copied and pasted from my cheapy old Prelim chem summary (ahh the memories...) "1.2.1 6000 BC: copper was the first metal used by humans for simple tools 4000 2500 BC: the first annealing of working copper. Copper was first smelted in the Sinai Desert in Israel 3000 2500 BC: Copper...

Why dont you just aim for rank 1 in everything? :p

damn it, thats there my physics teacher got this question from. It was almost identical to the one in my half yearly (let that be a lesson, do as many past papers as possible).

Yeah, its time dilation but for part b, i got 0.974c. Maybe someone else can verify the answer. Oh and where did you get this question from? It seems very familiar.

Ahh.. I forgot about t formula. Much faster

[ 1+tan(x/2) ] / [ 1 - tan(x/2) ] = secx + tanx LHS = [1 + 2tan(x/2) + tan²(x/2)]/[1-tan²(x/2)] = [1 + tan²(x/2)]/[1-tan²(x/2)] + [ 2tan(x/2)]/[1-tan²(x/2)] = [sec²(x/2)]/[1-tan²(x/2)] + [tan(x)] since...

I reckon, CM_Tutor is my hero.. pro at maths and science.

Thats for escape velocity. Theres a slight difference in the two formulas. (theres a 2 in the formula for escape velocity)

You shouldnt really say that.I pretty much failed most of my exams and still ended up with an E4. You have to take into account the difficulty of the exams instead of generalising. Not all schools are the same. :)

:D you get alot of notes... but it doesnt mean you have to read them. SOR I is such a bludge, you just sit in class and the teacher goes on and on. I supposed there is alot of work involved for those relying on that extra unit but personally i dont give a damn about religion this year *gets...

Someones confident... :p

My brother downloads all the latest episodes for me from the US. You guys are in for a roller coaster ride alright. 24 is awesome!

wait a week or so till the old layer of skin peels off :D

Dont worry too much mazza_728, from what ive read about the uai and scaling etc, the school assessment marks mean didly squat. Theyre only used to determine ranks, the important thing. http://www.boredofstudies.org/community/showthread.php?s=&threadid=6642

You're lucky to have the 4unit classes within the school timetable. I get 3 lessons a week after school...

I think AsyLum meant he/she got 87 for the HSC exam mark, 55 for the assessment mark and therefore 70 for the HSC mark (the average of the exam and assessment).

Ouch... thats pretty bad for an accelerant (arent they expected to get at least 80%). Well, your doing it again so dont worry too much. People usually smash it the second time around. there are some exceptions though... i know some people who are doing 2unit maths for the THIRD time! they bombed...

Ive been doing okay..... not as well as id hoped though