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I am probably catching the same train as you, except that I am boarding at Redfern station.

So this is a table that I've made for transforming the graph of f(x) into that of f'(x) or vice versa. Can anyone please read over it and fill out the blanks for me? Thanks :) <tbody> f(x) f'(x) Positive tangents Above x-axis Negative tangents Below x-axis Concaving up...

Hey Carrot, can you please put me down for Humanities, Math Ext 1, Math Ext 2 and English? Thanks :) EDIT: I deleted my previous post as I thought I was already listed down for Maths and English.

Hey Powlmao, just wondering if you have any Legal Studies or Economics past papers. I would love to upload my collection, but they are all CSSA and Independent Trials...

^I used this supposedly correct method to solve another question in the same excercise, but I got it wrong :( Can anyone please read over my working out and correct me if I'm wrong? Thanks :) (a) Simplify \frac{\binom{8}{k}}{\binom{8}{k-1}} Ans: \frac{9-k}{k} (b) Hence, find the greatest...

Repped :)

Re: Official BOS Study Meat v2.0 Hi5 for being vegetarian! Though I'm only flexitarian :)

This is an easy question (as it's from Math in Focus) but I keep getting the answer wrong. Could someone please read over my working out and tell me what I did wrong? Thanks :) (a) Simplify \frac{\binom{6}{k}}{\binom{6}{k-1}} Solution: \frac{7-k}{k} (which is correct according to the answer in...

Thanks for the rep... lol

Re: Official BOS Study Meat v2.0 Lol haha I would never forget that. I won't be offended if you say it to me on the day ;) Thanks Spiral :) Btw do you want to catch the train with me to Parramatta on the day? Hey Carrotsticks, can you please add me to the 'attendance list for...

Re: Official BOS Study Meat v2.0 I'm coming :) though I wish there was a seminar for Legal haha.

Hurstville or Kogarah Library.

I used to aim for law, but now I'm happy with an arts degree at USYD :) What about you? And how is Ext. 2 going? I don't quite understand mechanics atm considering I don't even do physics :/

I'm so stressed out for the coming trials in early July though... and btw I just lowered my atar aim to 85 :)

Hey Bored_of_HSC, what's up? How's HSC treating you?

Thanks mate! But I have two questions now. I wonder why the displacement function is x = 8 -4cos[ (pi/6)t ] but not 8 -4cos[ (pi/6)t + α] where α is a constant. Is the constant α necessary there? I am asking this because the textbook defines the displacement of a general particle is x= acos( nt...

Low tide at the mouth of a river occurs at 4pm and high tide at 10pm. Low tide is 4 metres and high tide is 12 metres. A ship needs 10 metres of water to pass safely through the mouth of the river. If the motion of the tides is take to be simple harmonic, what will be the first times during...

So how did you get t^2k in the first line then if you "didn't actually multiply the two terms"? That's what confuses me :(

I was referring to the C(n,k) from the expansion of L.H.S.

Thanks Carrotsticks :) This probably sounds very stupid but I wonder how you multiply the two summations in the first line (as I haven't learnt it yet). Shouldn't the term \binom{n}{k} be squared also?