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would it work if i equated the sum of roots to the RHS and subbed in z=1 for where z=1 is defined?

oh shit did not see the z=/1 in the question lol

i said sum of roots, this is the 1+z^1+z^2... equation as it is equivalent to the fraction on LHS.

For part C if you want a truly quick solution, -sub in 'i' into the RHS of (b), you get product of roots as z^2 and 1 cancel out, do this to the sum of roots on LHS. -sub in '1' into RHS of (b), expand the brackets and u get sum of roots, do this to the sum of roots on LHS.

If your son takes ext 2 maths, he will have 4 units that will scale well, assuming he also does well in ext 1. If he takes Advanced and ext 1 only it will only be 3 units meaning he will need to take an additional extension course in some other subject or he takes another 2 unit course to reach...

i would suggest briefly skimming over the chapter reviews in cambridge from the year 9/10 textbooks. This should give you a good indication to what you will need to improve on as year 11 advanced maths is just year 9/10 plus a couple new topics.

If you missed topics from year 10 i wouldn't really worry as they are retaught, however, if you missed topics year 9 and below i would revise those topics again.

If you just fix up the angle should be fine, it's probs cause you tilt your paper when writing but is an easy fix nonetheless.

10^8 is a lot (stressing the word a lot) smaller than 10^20, so adding these numbers will be as useful as having just 10^20.

over the course of my senior and junior years of high school I have heard many teacher say that scaling doesn’t exist or doesn’t matter when choosing courses. Why would a teacher (presumably intentionally) say that scaling doesn’t exist when they are putting students at a disadvantage and what...

getting 93-94 in every subject secures mid 99, maybe my raw scaling mark is wrong.

wait is it actually that high? i thought u just needed like 93-94 in all ur subjects.

probs around 85 for math, phys, chem, dk about English and legal. edit: 85 for maths in other years considering ppl found this years paper easier.

3 of the tickets drawn out will win prizes, so the 1 raffle ticket that sue has will need to be apart of the 97 and 1 raffle ticket will need to be apart of the 3. ofc u have to factor in position drawn and order drawn.

i have heard this a lot as well, i dont think it matters if u do 10 or 12 units, when ppl say that the high atar students do 12 units it is probably because they half study/bludge their 11/12th unit. just my opinion.

i go tutoring for 2 subjects and i really only go there for resources, much less the help.

nope, im saving those until i learn the full 4u course to do in one sitting rather than doing a few q's here and there.

any other suggestions ^

Where can I find hard roots of unity questions, i have done all the textbook ones and i'm looking for harder exam style questions.

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