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clean version: https://educationstandards.nsw.edu.au/wps/portal/nesa/resource-finder/hsc-exam-papers/2023/mathematics-advanced-2023-hsc-exam-pack

fizzysoda’s solution is in this post https://community.boredofstudies.org/threads/anyone-have-extension-2-2023-hsc-maths-solutions-or-paper.405789/#post-7512508 and that one has correct solution to Q10. Mok’s is incorrect. EDIT: Mok has since corrected his solution for Q10.

fizzysoda's said Q10 is B but mok's original version of his solutions said C so which is it? \textstyle\text{Suppose }A=(2,0,0),B=(\frac{1}{2},\frac{\sqrt{15}}{2},0)\text{ and }C=(\frac{3}{2},\frac{\sqrt{15}}{6},\frac{2\sqrt{3}}{3}) Then you can check that A,B,C lie on a sphere centre the...

mok's solution and fizzysoda's solution differ for Q10. I agree with fizzysoda's answer B, not mok's C. Both mok's solution and fizzysoda's solution give enough reasons for why it can't be A or D and fizzysoda gave a reason why it can't be C. So by elimination it must be B. I know it's not...

They fixed it

Woo's video is back up on youtube now:

From post #484 mok solution to 15c Here is another solution by fizzysoda: fizzysoda's full solutions are here

See post #258

Websites which will probably have typed up solutions later: itute: https://www.itute.com/download-free-vce-maths-resources/free-maths-exams/ (all 5 exams Std 1 and 2, Adv and ext 1 and 2) Matrix: https://www.matrix.edu.au/hsc-solutions/ (Standard 2, Adv, Ext 1 and 2) Terry Lee...

Here is another solution by "teacher". I haven't checked it.

There is another one in this post: https://community.boredofstudies.org/threads/maths-extension-2-predictions-thoughts.405459/post-7512509 (mok's)

Here are some by mok https://boredofstudies.org/threads/maths-extension-2-predictions-thoughts.405459/post-7513429 It has an updated version to the one that was here before

Woo's video seems to not be on youtube anymore. Maybe he will make a different version later.

There is a smh article too https://www.smh.com.au/national/nsw/three-words-in-an-hsc-maths-question-sowed-confusion-among-students-20231016-p5ecoj.html

Well odin might have got 97 and you might have got 100. As I said before I haven't checked it so some might be wrong.

got this but haven't checked it so some may be wrong

With the 2023 HSC we can add these proof questions Q2, 4, 12a, 12b, 13b, 16b and this does indeed bring the total up to 400 now.

Here's the ext 2 paper. But not solutions yet.

Found this but it's not a clean version and some answers may be wrong. At least you can see the questions. Clean version will be on nesa website soon anyway.

Paper 2 is up at https://educationstandards.nsw.edu.au/wps/portal/nesa/resource-finder/hsc-exam-papers/2023/english-advanced-2023-hsc-exam-pack++ now with a small part of Q3 redacted.