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Thankyou! Took me a bit to figure out how to derive it with the given co-ordinate but I think I got it now :D Thanks for spending the time + effort.

One more question, find the equation of the chord of contact of tangents drawn from the external point (3,-1) to the parabola x^{2}=8y. I know the equation is xx_{1}=2a(y+y_{1}) but I have no clue how to derive it.

ahh it is all good! Thanks :D

Aww man, i got x after that bracket, is that wrong?

Ahh k thanks, got it ^^. For that question just above, what do I do? EDIT2: Since it says find the equation, I have to make it into cartesian form correct? (I don't have the answers on me ><)

Thanks also, for the question "Find the equation of the chord XY on the parabola x^2 = 8y where X = (4t, 2t^2) and Y = (4r, 2r^2)". Now, the equation of the chord is y-\frac{p+q}{2}x+apq=0 but I have no idea how to put that information into it so instead, I should find the gradient and then use...

If a question says 'derive the equation of the tangent to the curve x^{2}=4ay at the point (2ap, ap^2), does that mean to go through the whole process or can i just chuck the equation straight in?

Woo, the pressure of remaining consistent!

I don't see them anyway sorry, I must be blind o-o.

Woo someone with 10 units, now i don't feel bad.

Maybe 'try' over the holidays and do a few practice advanced math tests and mark yourself. If you are still getting say under 60%, I suggest you should drop.

Hey I wanted to buy Terry Lee 4U and Cambridge 4U and I was just wondering, is Dymocks a good place to buy these textbooks (not a rip-off)? I'm on the Northern Beaches and I don't really know any other bookstores...

Hey, Skeptyks here. Subjects are 4U Maths, Advanced English, Economics, Ancient History. 10 units :]? (I don't see anyone with 10 units...) Aiming for an ATAR of 98+ but I'd be happy with a 95+

One more question added.\ Another one added.

Wow thankyou heaps! Exactly the description I was looking for.

The question below is solved. I have another question, at a dinner party 6 people sit around a table. b) Find the probability that if seating is at random, 2 friends will sit apart. Also, how many arrangements are possible from the word STUDIO if the letter s is not the first letter. I did 5...

So this is pretty much the exact same scenario as me. I am planning to go to cross-campus in order to attend the lessons.

could you send me a sample please :] I am considering buying it.

10 units :]]

Well it's not as if its James Ruse, nor am I James Ruse material. Anyway, enough with the stereotyping. I'm not going to tell you which school I go to .-. Just have a guess, ranking 270-300. Oh, I fixed the links btw.