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Ye, I understand what you mean but I thought we had to place the 1 parent down first

hmmmmm ok then, I need to revise perms and combs before the exam

But but but, you have to place one guy down right because it is a circle table hence (n-1)! ? I am confused....

Isn't IIT JEE the university entrance exam in India? Probably not much use for the HSC course lol.

Also again for MC Q8 shouldn't the answer be 144? Because 1 x 1 x 4! x 3!, not your solution of 2 x 4! x 3!. This is because it is a circular table so you have to place one individual down and set them there hence the 1 x 1 instead of 2? However, Permutations and Combinations aren't my best...

Arrowshaft, I think you made an error for MC Q2 in both solutions. I reckon it should be 2/a. Will provide solution if needed/correct.

You think it might be a SHM question? Haven't really seen one of those as a last question.

Yes you're right, just rushed the answer and forgot about θ/2.

Is the answer cosθ ? If so, just sub tan(θ/2) for t and you get 1 + (tan(θ/2))^2 at bottom which can be equated using the trig identity to (sec(θ/2))^2 and take it from there

Why would it not give you 3/3? If all your working was there and it was correct, then they would give you 3/3. There are multiple ways of doing basically all questions. You'll be fine as long as you wrote everything needed. I also used similar triangles btw, but I just proved triangle ACD is...

https://ngoandsons.com.au/resources Solutions from Ngo and Sons

Unless of course, you didn't try at all/had other issues during HSC year. Try self teaching for a bit YouTubers such as Eddie Woo cover 2U, 3U content really well. Then make the decision if you want to do a bridging course or not (you will probably need it do engineering right?). If you want it...

Does everyone think it was harder than previous years or easier? I can't really tell, some part were harder than previous years and other were easier.

Isn't 10. C because you go from positive gradient ot negative Ye I agree

NOOOOOO, I forgot to discard the negative 2 for the log question!!!

I got C

no it's not minus one mark. I'd assume that would be fine... especially since it shows it is decreasing...

I got 5.(something) i think EDIT: Made a typo on the calculator or I just remember wrong. I redid it and got 1.5

Nah for the last question part b

What did people get for where the particle stops?