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May I ask, why does the locus have to be contained within the unit circle? I understand that it must be outside of (x+2)^2 + y^2 = 3, but I don't understand why the unit circle is involved. Thanks

Re: HSC 2015 4U Marathon https://imgur.com/AbcGhk4 --- z satisfies the equation |z - 2 - 2i| = √2. a) Sketch the locus of the point P representing z on an Argand diagram. b) Find the maximum and minimum values of |z| and the values of z for which these extremes are attained. c) Find the...

Re: HSC 2015 4U Marathon Here's my working, I feel as though there's a much easier solution to part i that's right under my nose, however this is the way that I did it. https://imgur.com/UoF6Kk9 Axio, may I ask a question? In your answer to my previous question, one of your lines of working...

Re: HSC 2015 4U Marathon http://imgur.com/w1DCp1x I can't use the program (forget what it's called) that everyone uses for writing/answering questions, so: If P(x) = x^4 - 8x^3 + 30x^2 - 56x + 49 has a non-real double zero, solve the equation P(x) = 0 over C and factorise P(x) fully over R

My school went from ~230 last year to ~350 this year :( Next year when I do my HSC it's gonna be even lower, my cohort sucks ahah

Mathematics - 94 That's it for this year (I did mathematics accelerated) Unfortunately my cohort was only 1 (me), and I did super well in the assessments, and got 94 in the exam, thus they pushed my assessment mark down to 94 as they couldn't compare my exam:assessment mark ratio to anyone else...