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  1. J

    Mathematics Extension 2 - 2016 Post-HSC Exam Thoughts

    How about this solution for the inequalities question? $Since $ (x-1)^2 \geq 0, $ then$ \\ (x-1)(x-1)\geq 0 \\ (x-1)(\sqrt x - 1)(\sqrt x +1) \geq 0 $ as $ x \geq 0 \\ $But, $ \sqrt x + 1 >0 $ for all $ x \geq 0 \\ $then $ (x-1)(\sqrt x-1)\geq 0 \\ $so upon expanding, $ x\sqrt x + 1 \geq x+\sqrt x
  2. J

    Music 2 Exam General Thoughts

    the piece in Question 3 was literally just noise. lol.
  3. J

    please solve

    Wrong thread - but here goes you should quadratic formula to get a solution for y^2. Then discard the negative solution. Take positive/negative square root for solutions for y.
  4. J

    It's over!

    Does anyone remember the name of the piece in the melodic dictation excerpt and the subsequent excerpt? It was a really awesome piece :)
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