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  1. Pwnage101

    Conjugate acid-base equations

    No logical reason.
  2. Pwnage101

    Formal limits

    \sin \left (3x \right )\leq 1\;\; \forall x\in \mathbb{R} but yes.
  3. Pwnage101

    integration

    I did not find the volume of the cylender as the explicit answer; would you agree that: The volume when the region bounded by the curve y=x^3, x=2 and the x-axis (x>0) is rotated about the x-axis PLUS The volume when the region bounded by the curve y= x^3, the y axis and the line y=8...
  4. Pwnage101

    integration

    Required\;volume\; =\pi \times 8^{2}\times 2-\pi \int_{0}^{2}\left (y \right )^{2}dx =128\pi -\pi \int_{0}^{2}\left (x^{3} \right )^{2}dx =128\pi -\pi \int_{0}^{2}x^{6}dx =128\pi -\frac{\pi}{7}\left [x^{7} \right ]_{0}^{2} =128\pi -\frac{\pi}{7}\left ( 2^{7}-0^{7} \right ) =128\pi...
  5. Pwnage101

    Binomialllllllll

    Just checked on a spreadsheet, took n as 10, 100 and 1000 and did the summation, and yes what you have stated seems to be correct.
  6. Pwnage101

    Induction Question

    Over what range of n are you talking about, because it is NOT true for n=2: 2!=2\times 1\times 0!=2< \left ( \frac{2+1}{2} \right ) ^2=\left ( \frac{3}{2} \right ) ^2=2.25 \ EDIT: A quick look at this using a spreadsheet reveals that the converse of what you stated is true for all natural...
  7. Pwnage101

    New Mathematics Extension 2 syllabus?

    \mathbf{i}=\begin{pmatrix} 1\\ 0\\ 0 \end{pmatrix} , \mathbf{j}=\begin{pmatrix} 0\\ 1\\ 0 \end{pmatrix} , \mathbf{k}=\begin{pmatrix} 0\\ 0\\ 1 \end{pmatrix} , \mathbf{i},\mathbf{j},\mathbf{k}\in \mathbb{R}^{3} Using column vectors.
  8. Pwnage101

    hmmm.... chem

    Q1 of MC. 2008 Independent Trial. The answer is definitely (c), although i understand where you get the idea it could be (b). Since the instructions state to "Select the alternative A, B C or D that bet answers the question", (c) is the best answer. Choosing (b) implies a substitution...
  9. Pwnage101

    hmmm.... chem

    Which year's Independent trial examination are you referring to?
  10. Pwnage101

    outline the essential problem with light, the aether and the principle of relativity.

    Re: outline the essential problem with light, the aether and the principle of relativ He definitely was the first to formally state it, but i read somewhere that that the ideas behind it does pre-date him.
  11. Pwnage101

    econ241

    Past semesters' unit outlines have been placed here: ECON241: Introductory Econometrics - Department of Economics - Macquarie University and it should be updated with 2010, semester 1 in the not-too-distant future hopefully.
  12. Pwnage101

    Teach myself Chemistry?

    It is possible with a (variety of) good textbooks.
  13. Pwnage101

    ACST101 - Techniques and Elements of Finance

    The textbook [in my opinion] is not needed because the lecture notes are excellent, and extra questions and more detailed lecture notes are available for all topics. I don't think you will have time to go through the textbook if you go through the rest of the material. That's for techniques...
  14. Pwnage101

    Tutorials

    It appears ECON111 has changed quite significantly, so i don't think we can help you. Last year a different textbook was used, tutorials did not start unitl week 4 (yes, four, no typo), and 'tutorials' were held in lecture theatres with 100+ students registered for (but not necessarily 'went...
  15. Pwnage101

    Upfront partial payement for student contribution.

    For all fee information, refer to University Fees, Macquarie University.
  16. Pwnage101

    Upfront partial payement for student contribution.

    Yes, whether it be an upfront payment or not; i.e. any payment received after 19 February, 2010.
  17. Pwnage101

    Textbook edition

    There is no pack since ECON111 no longer uses Bernanke.
  18. Pwnage101

    Upfront partial payement for student contribution.

    The box you ticked on the eCaf form is only an indication; that is, if you don't pay even though you ticked you would, and you have HECS HELP approved, your outstanding debt will be transferred to the ATO 2 weeks after census date (31 March) as normal.
  19. Pwnage101

    Tutorials

    ACST101- - Starts in week 2.
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