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Yeah i got them cept 9 i got B and 11 i got C. I duno if im right though

b is -1/x not 1/x.

Thanks man!

Haha i still cant do question d on the first image lol its driving me nuts, i know ive done that question before!

Line the 6 boys up first: 1 1 1 1 1 1 Then a boy must be between each girl (since no 2 girls can sit together). So the girls can sit in the spots numbered 2: 2 1 2 1 2 1 2 1 2 1 2 1 2 Hence boys can be arranged 6p6 and girls can be arranged 7p4.

Just out of interest is the answer 604 800? If it is i have an easy way, if its not well :S lol

No, e is the ratio of PS/PM (distance from point to focus/distance from point to directrix). It says PS = PM/3, so PS/PM = 1/3 which = e.

Strangely enough im pretty sure he did answer your question lol even though he said he was answering a different one :P

Hey all just wondering where i could find some past ext 2 hsc stats, like average mark and band cut offs etc (from 2000 - 2005). Also if u have done any of these papers feel free to leave a comment about what you thought of them, i.e which ones where easier or harder than others. Just trying...

Let us all bow down at your knee's all powerful one. Haha thanks for letting us know how good you are!!! I've been dying to find out. Just on a side note, im well aware the CSSA papers are far from the hardest, but to say they are nothing near the difficulty of the HSC is complete bs, id rank...

Sorry was a bit short before, As the curve 1/(1 + x^2) is at 1 when x = 0 and at .5 when x = 1 you cant take the integral from 0 to 1 with respect to y. So take the integral from .5 to 1 and add the volume of the cylinder left, which r = 1, h = .5. If you need anything more ill try write out...

I got PI ln2. I used integral from .5 to 1 (draw the curve). Then added the volume of the cylinder under that curve.

Hmm id focus on the syllubus, most of it comes from there lol

I would say not yet lol as im sure alot of kids took a sick day today and will be waiting for someone to leak some q's or answers on these forums. I know a couple kids from my class were 'sick' today lol.

I only got parts a i ii and b i done in q 7, went back to pick up some more marks after that. The test wasnt so bad, thought it had a good mixture of difficulty, i just made alot many dumb errors like factorising incorrectly haha soo depressing when u think about the paper after the exam and...

Anybody got an estimate for wat mark would get a band 4 in this exam?

Haha Rama you champion, thats awsome, thanks mate!!!

Haha yeah thats what i said to my teacher, he doesnt believe its true, so he wants me to prove it. I dont where i would start in proving it.

Thats not what im trying to prove though, im trying to prove that if the situation in diagram two occurs (in my first post) you can say that the four points are a cyclic quad.

Im pretty sure im capable of a raw mark in the 90's for the SDD HSC exam. CUrrently im ranked 2nd in a class of 3. The kid who is beating me isnt bad in the assigment part of things and quite a good programmer but self-admits to not doing very well under exam conditions. And the third kid...