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Your working for c) i) and ii) is correct, however, when finding values of 4θ, it is a better practice to write the solutions as 4θ = ±π/2, ±3π/2, ... (using i) as an example) as the solutions will occur in more quadrants than one. Once plugging in values for θ, you should also recognise that...

does this mean the alignment for 3u this year should be slightly higher than 2021? or do you guys think 2021 was harder?

I can see it already "Q21) a) Derive Schrödinger's wave equation (show all working). (1 mark)

watch them throw in a projectile motion question with air resistance

ready to get asked a 10 marker on accuracy, reliability and validity.

damn a 65 went to 88 last year, does that mean E4 cutoff for this year could be around there?

amen brother 🙌🙌

guess that means there will be a 15-marker on combinatorics since the maths faculty seem to going all out just this once

feeling great, ready to cop that raw 30 and go to tafe

What do you guys think the E4 cutoff will be?

Idk how they can go from 2020 and 2021 to this

Good luck guys

that, and i doubt the first thing people will think of doing when seeing a graphing question is considering each quadrant separately for the inequality

Hopefully no DFDs, otherwise it should be ok.

anything else >>>>> inequalities

Do you guys think the exam is gonna be a step up in difficulty from last years?