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Also, the Towards an Australian Curriculum document has been published at http://www.myschool.edu.au/Resources/FactSheets/My%20School%20FACT%20SHEET%20Towards%20an%20Australian%20Curriculum.pdf

The Keynote presentation on the national mathematics curriculum at the 2009 MANSW Conference by ACARA's Peter Sullivan has been published at http://www.mansw.nsw.edu.au/pd/conference/2009/presentations/sullivan/MANSW-keynote-09.pptx If you can't open the pptx file, I've converted it to...

I made a thread on it here

Well for a cubic, the third derivative will always be a non-zero constant, hence for cubics, the third derivative test will always work. Don't let this make you think it will always work for all functions though. The third derivative test is sufficient but not necessary.

This is not correct. Consider y=x5. Third derivative is 0 at (0,0), but this IS an inflection.

Actually, Thuc Tran was the first. His were online at 4:50pm, whereas Terry Lee's was up at 7.21pm on 27th Oct. So if it's a race to see who can publish first, Thuc Tran is the winner. Not sure if itute did a copy/paste job from Terry Lee, but if they did, they should acknowledge it. It's...

Video of <i>Structure and Randomness in the Prime Numbers</i> lecture at ANU given by Terry Tao on Sept. 22, 2009:<p> <embed type="application/x-shockwave-flash" src="http://www.abc.net.au/tv/cinerama/swf/singleclip_player_08.swf" id="playerObject" name="playerObject" bgcolor="#000000"...

OK. Here it is.

itute.com have started to publish solutions from today. The first one to go up was the Ext. 2 at http://www.itute.com/wp-content/uploads/2009-nsw-bos-mathematics-extension-2-solutionsv2.pdf They will probably also publish the Ext. 1, 2 Unit and General ones soon

If you want to contribute to MANSW's solutions book they publish each year, you can make a submission to MANSW of your solutions to entire papers or part thereof and/or go onto the Solutions Committee. Submissions Send by post to: Attn. Margaret Bigelow MANSW PO Box 339 North Ryde...

I've copied it to http://www.angelfire.com/ab7/fourunit/2009ext2-hsc.pdf I've also put links to other stuff for the 2009 HSC exams at http://www.angelfire.com/ab7/fourunit/index.html I haven't updated the zip files but will do so soon - *waiting for itute.com solutions*

http://4unitmaths.com/exams.html http://www.angelfire.com/ab7/fourunit/index.html http://users.tpg.com.au/nanahcub/me2.html

To clarify even further, it should be said that it's Pólya's proof, not Cambridge's. And it came to him in a dream!

Past Ext. 1 HSC papers (1967 - 2008) are at http://users.tpg.com.au/nanahcub/me1.html And trials are at http://www.boredofstudies.org/view.php?course=2

What have you been doing for the last year? lol

Do 260 http://4unitmaths.com/exams.html (200) http://www.angelfire.com/ab7/fourunit (60)

Re: Ext 2 Past Papers + Answers Well I just tested a few files from the angelfire site and they seem to be working.

Which book was it?

Using your equation, the cubic formula yields \tan10^\circ=\sqrt{{8\sqrt3\over3}\cos130^\circ+3} However, it might be better to say it is a solution to x^3-\sqrt3x^2-3x+{1\over\sqrt3}=0 in which case the cubic formula yields \tan10^\circ={4\sqrt3\over3}\cos260^\circ+{\sqrt3\over3} (noting...

Do they work from my attachments?