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Wonderful, thank you so much!

Thank you Tywebb! Will there be any Standard 2 Trial papers coming soon?

Here is a set of solutions to the 1998 paper

Here are the solutions by itute : https://www.itute.com/wp-content/uploads/2021-NSW-ESA-Mathematics-Extension-2-Solutions.pdf

Here are the Advanced solutions from itute https://www.itute.com/wp-content/uploads/2021-NSW-ESA-Mathematics-Advanced-Solutions.pdf

No longer in the Syllabus

Here are Terry Lee's solutions http://advancedmathematics.com.au/Resources/2020%20Ext1.pdf

There are mistakes in these answers

The paper listed as Gosford 2020 Standard 2 Trial is actually the Gosford 2020 Advanced Trial.

Not topics, but some concepts. The mechanics chapter, for example, has a section on static and dynamic friction which I couldn't find in the other texts.

It's ok, does some topics well, but has some material that is not covered by the others, which adds to the confusion of what to concentrate on. My pick is the new Cambridge text, followed by Fitzpatrick Ed 3 and the new Terry Lee.

Yes, I would have normally have solved this question with differentiation, but the textbook asked for the statement to be proved using Mathematical Induction, and was a "hence prove" follow on from part a.

Yes, the question came from the new Maths in Focus Ext 2 textbook in ch 5 Mathematical Induction Exercise 5.04 Q3 part b.

Thank you!

Here is my working for that question. I have left the n=1 step out to allow the solution to fit on one page.

Thank you!

I have the textbook but haven't been able to find these solutions. Where will I find them?

Here are the solutions by itute: Extension 1 Solutions

itute solutions for Standard 1 are here: Standard 1

Here are a set of solutions from itute. http://www.itute.com/2019/11/01/2019-nsw-esa-mathematics-solutions/