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OOPS sorry, in my line of working It is supposed to say, t=0 ---> x=2 :/ Then you sub in x=2, and you get root3/2, which simplifies to pi/3, times by 1/3 put to the other side makes C=-pi/9

Here it is in cosine form, Im absolutely sure Im right.

Very smart question indeed, posting solution. Amplitude = 4/sqrt3 Period=2pi/3 Also that pi/3 at the end is PART of the Sine function.

http://phet.colorado.edu/sims/pendulum-lab/pendulum-lab_en.html Here is a great simulation displaying SHM, just imagine that the curved motion is stretched out on a straight line. Just show the velocity and acceleration vector, let g=0. At the end points, you notice that the velocity vector is...

You are golden! Thank you very much, hoping to see more of this in the future (Must spread rep before giving it again dammit)

Sketch them for their given domains, for example, do a dotted sketch of |x-2|, then fill the line in for the domain x less than or equal to 2. Then rub out the dotted, do the same for the parabola Here is my sketch If its not clear the x intercept is 2, and the y intercept is 2

Then it requires students to be more careful, some of them can be pretty tricky, our school has already given us our hye which was in the new exam format, and I dont know why your school hasnt. The exam is now feels shorter, and fortunately/unfortunately. Considering now there is a possibility...

When our school gives us the note for competitions, I just pay for all of them, and do all of them. Some are fun, some are boring, however in my opinion they are all a good experience and are a good investment (most of them). I did the AIC (Australian Informatics Competition) around a month or...

Either way, it was silly of the question not to state the usual first part: i) Find d/dx e^(x^3) ii) Hence find integral And even then, it isnt hard to see the relation, but yeah I would think its not exam suitable

Well if you sketch the derivative, you get the zig zag. However the zig zag is a result of the division of two seperate functions. That is, if we skecth the top and bottom functions on the same plane, we get. Where the blue is y=cos(x) and the red is the denominator with the square root...

Heh, sorry about that then, I just...yeah

Red is answer. The Red as you can see is a reflection by the curve on the left, which is monotonic increasing. Answer is wrong, or question is wrong.

Discriminant is less than zero Moreover Those are the LHS and RHS graphed. No intersection, therefore no roots IMPOSSIBRU

And in all honesty and irony, cheating is just as dishonest as snitching, so you should be able to pick your poison, whether to pick any at all

Fine Life is unfair, then people can go snitch and make a problem because after all "life is unfair". However, the usual thing is, dumb people cheat, and smart people dont, so usually its not something to worry about. I mean seriously, obviously its for his own gain. Studying is for your own...

QFT Im pissed with the Board of studies syllabus for the sciences.

Does Extension 1 English scale higher than Ext2 because in 4u english there is this major work which everyone gets high in? I know next to nothing about the 4u english course though except that there is a major work in it. So can someone explain why Ext1 eng scales higher than ext2 eng?

Oh ok, so the papers you gave to Aysce were past HSC papers? If they were a school's one, or an independent or something, those are like gold to me heh.

Oh, if it isnt to stupid to ask, but may I have those questions as well please? I have the task for this and applications of calc. in about 4 weeks and our examiner gives us crazy questions, and it wouldnt hurt for me to try some of these questions that you may have. Thank You very much.