# Search results

1. ### Atar Estimation

My ranks are 24/74 chemistry 19/98 Extension 1 maths 41/56 Extension 2 Maths 90 confirmed Ancient History Accelerated 34/70 Physics 70/150 English Advanced Top 35 school rank in state
2. ### How to read integration values

Thanks, that helps a lot.
3. ### How to read integration values

my teacher recommended this university book to try practice mod 8 Proton NMR questions and trying to identify compounds based on spectra given, and it seems to be a good resource, however I am wondering if there is a way to know what the integration values are on the H NMR graph or if in uni ur...
4. ### How to prepare for the LAT

Hey I just wanted to ask if there was any exam papers that were similar to the style of the LAT section 2, where you have to write the argumentative paper
5. ### Complex qs.

The diagram shows an isosceles triangle PAB. PM. is the bisector of angle APB, where angle APB = β. PM bisects AB. A and B represent complex numbers z1 and z2 respectively Find the complex number MP and hence show P represents the complex number 1/2 ( 1-icot(β/2))z1 + 1/2(1+icotβ/2)z2 could...
6. ### Vectors Help

ohhhh that makes so much more sense...
7. ### Vectors Help

Thanks for the replies, however i still cant seem to figure it out, after replacing it with the dot product and expanding I am left with 1/2(5b^2+a^2+4ab) at which point I am not sure where else to go from there
8. ### Vectors Help

If M is the midpoint of the side BC of triangle ABC. Let vector AB =a and vector AC = b a ) Find vectors AM and CM in terms of a and b i got AM = (3b+a)/2 , CM=(a+b)/2 part b) Show that |AM|^2 +|CM|^2 = 1/2 (|AB|^2 + |AC|^2) Need help with part b, I tried to sub in the vectors into the...

10. ### Root of Unity help

Wanted to ask how to do this question. In the argand diagram below, Point P lies in the first quadrant on the unit circle. P represents the complex number w and z=w is a root of z^5=1. anglePOx=theta (I have not included the diagram, which is only a unit circle with a vector labelled P with...
11. ### alternative method?

Thank you so much!
12. ### alternative method?

I'm not, how are you 2026?
13. ### alternative method?

hey I was wondering if you could do part ii) using triangle inequalities instead of graphically? I know the first part is doable. Thanks.
14. ### What should I do?

After finishing my first term of year 12, my marks aren't looking great. I'm particularly concerned about my maths extension 2 mark, which I got 58% in my Proofs test, the average was 66%. I'm aiming for a high atar and I'm not sure I can even recover from this, this task was weighted 20% so I...