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Hi Everone, I am currently a PhD student at University of Sydney and been tutoring both high school and university for the past seven years (for Maths, Stats and Programming). Just some of the highlights are: UAI 99.25 4U 95 3U 97 HD Average in all Mathematics (Advanced subjects) 1st...

You are right except you had to state that x>1 or x<-1... and you can further simplify it to -\frac{1}{x\sqrt{x^2-1}} which is what one of the post above have mentioned.

Its been a while since I did HSC so what exactly does subtend mean? Is it asking to prove that RTA (A being the focus) is 90 degrees? Also are you sure the question is correct? Anyway I attempted to answer the question, and this is how you should approach a parametric Q in general but I...

Hope this helps. Cheers

This is only the first part of the solutions. If there are are any requests let me know and if you want me to work on any particular questions. Cheers p.s. sorry about splitting up, BOS has a limit on pdf size

Hope the attached file helps.

I will post up the rest of the solution once the all clear is given, but in the meanwhile here's Q1-3.

Can you get back to me regarding posting solutions ASAP. I want to put them up, but would appreciate if you let me put a link to my page. (Check my pm).

Hi All, I've posted up the solutions of the first four questions on youtube. Please take a look and let me know if you want to see more, of topics, any criticisms, feedback etc. http://www.youtube.com/playlist?list=PL46083118FA2D089D&feature=mh_lolz p.s. Sorry about my voice btw.