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Not that you need any more convincing - but nonetheless: I recommend all Ext-1 students in Yr 11, especially those like yourself who are doing well, to at least try Ext-2. Just make sure that you have more than 11 units - so if you don't enjoy it or if you find it difficult, you are always in...

Whoa that font came out big. I have to admit - the distance formula was not the first thing I used. The natural thing to think about runs along the lines of "Nah, that's 2U. We're talking 4U conics here." So I was halfway through doing that sum of roots thing when I realised that I didn't need...

Ha! Our careers advisor briefly left some boxes containing the UAC booklets outside his office and some people opened them without asking for permission and took some booklets. Now he is angry and is refusing to give the rest of the booklets to anyone else.

i) By distance formula: PQ² = (x<SUB>1 </SUB>– x<SUB>2</SUB>)² + (y<SUB>1 </SUB>– y<SUB>2</SUB>)²[/COLOR] = (x<SUB>1 </SUB>– x<SUB>2</SUB>)² + [(2x<SUB>1</SUB> + c)<SUB> </SUB>– (2x<SUB>2</SUB> + c)]² = (x<SUB>1 </SUB>– x<SUB>2</SUB>)² + (2x<SUB>1 </SUB>– 2x<SUB>2</SUB>)² = (x<SUB>1 </SUB>–...

Basically, the two curves are required to have the same gradient at their point of intersection. If you were to do this algebraically: Let f(x) = x³ - x + 2 and g(x) = mx For POI: x³ - (m + 1)x + 2 = 0 ...(1) Also, f'(x) = g'(x) -> 3x² - 1 = m ...(2) Solve simulateously. The...

Add one more to the majority. I put that, too.

On the first day of my trial I will have Advanced English Paper 1 in the morning and Biology in the afternoon, with a one-hour break in between. I guess you've just got to deal with it. Study triply hard.

LOL I'm sorry if I'm misleading people. My info is so back-dated. The last time I checked was back in April when I was getting my application forms together. I suppose it's good news now that the UMAT scores are lower. At my school, the principal made the prediction based on reports...

Likes bmwz4 said, if you drew a table, the first part of that question was actually pretty easy. The other three were a bit trickier because they were the "if this did not happen, then who is not wearing what" type.

Oops. Sorry, my bad. UNSW & UWS. UNCLE isn't in Sydney but yes they need UAI prediction.

Actually, I think I was the one behind you, if you were the one who ran to the bathroom near the end of S2 & I definitely wasn't any number of pages ahead of you for S2 - I could barely finish it and I rushed 8 Qs in 5 mins at the end. I noticed that a lot of people around me finished early...

Q3 seems flawed. The vertical component of acceleration cannot = 0 because the downward acceleration due to gravity is -g = -10. i) y" = -10 Integration gives y' = -10t + C Now, t = 0 -> y' = Vsin@ (the vertical component of the inital velocity V)-> C = Vsin@ .: y' = -10t + Vsin@...

I think what kony is saying is that it might help with Q2 to write x = cos²(3t) as x = 1/2 + (1/2)[cos(6t)] - this move is not exclusive to the MX2 course. i) 3/4 = 1/2 + (1/2)[cos(6t)] -> cos(6t) = 1/2 So 6t = pi/3 -> t = pi/18 ii) x' = -3sin(6t) When t = pi/18, dx/dt < 0 -> moving...

I said it could be dingo or fox but not owl - but I think it might have been wrong. & I suppose the punnet square method is similar to the sudoku method that ravdawg mentioned. I thought of neither and did a lame table that only made things worse.

Of the unis in Sydney, only UNSW requires a UAI prediction (as well as an elaborate application form - entry closing this Friday, by the way). I hear that some schools give out inflated predictions to give their students a better chance at getting first-round interview. I'm rather glad my...

Hahaha. Well, nice to meet you. Were the seats numbered in increasing order from back to front then? I was 927. I know! Whatever happened to the 1 minute break in between? It was like, "Okay, pencils down. *2 second pause* Now you may turn to the next section and begin."

Was your seat number 926 by chance? LOL it would be funny if you were the dude sitting in front of me at Wentworth (morning session). & Yoakim: I'm also unsure about that one with the girls/clothes/colours but I can't really remember what the options were (or what I picked, for that matter)...

I see. I can't believe I missed those in the booklet... goes to show how unobservant I am. --- There were different papers at each test centre? How is ACER going to keep the fairness of the scores this way? Oh and what about the different coloured top/skirt/scarf question from Section 1...

I understand why you find this one hard. This is very much the hardest type of rates question that you will get in a 2U paper - in fact, I'm not entirely sure whether they are allowed to ask it. What f3nr15 said is pretty much it, but I will elaborate a bit further: In order to obtain...

i) Let the sides of the cube have length x mm. Then volume = V = x³, surface area = A = 6x². With this type of question, it helps to first establish which rate you are asked to find. In this case, dA/dt. This can be broken down into two related rates which can be derived from the functions...