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  1. nightweaver066

    Unsw Current Liability

    That usually comes up a bit later.
  2. nightweaver066

    MATH 1131 what Textbook?

    The MATH1131 course pack from the UNSW Bookstore. No need for the textbook.
  3. nightweaver066

    Calculating orbital velocity, mysterious contradiction?

    First formula is derived by equating centripetal force and gravitational force. So if you vary the "r", what you're doing is varying the distance between the satellite and the centre of the Earth. This lets you calculate the required orbital velocity at some distance from the centre of the...
  4. nightweaver066

    HSC 2015 MX2 Integration Marathon (archive)

    Re: MX2 2015 Integration Marathon = \int \frac{x^3}{\sqrt{2 - (x - 1)^2}} \, dx = \int \frac{(\sqrt{2}\sin \theta + 1)^3}{\sqrt{2}\cos\theta} \times \sqrt{2} \cos \theta \, d\theta \qquad \text{ using } x - 1 = \sqrt{2}\sin \theta = \int (\sqrt{2}\sin \theta + 1)^3 \, d\theta = \int...
  5. nightweaver066

    HSC 2015 MX2 Integration Marathon (archive)

    Re: MX2 2015 Integration Marathon = \int \frac{1-\frac{1}{x^2}}{\left(x+\frac{1}{x}\right)^2 - 2} \, dx = \int \frac{1}{u^2 - 2} \, du \qquad \text{ by letting } u = x + \frac{1}{x} etc
  6. nightweaver066

    HSC 2015 MX2 Marathon (archive)

    Re: HSC 2015 4U Marathon \frac{d}{dx}\left(x^2 + \frac{1}{x^2}\right) = 2x - \frac{2}{x^3} = \frac{2}{x} \left(x^2 - \frac{1}{x^2}\right) = \frac{2}{x}\left(x - \frac{1}{x}\right)\left(x + \frac{1}{x}\right).
  7. nightweaver066

    HSC 2015 MX2 Marathon (archive)

    Re: HSC 2015 4U Marathon The "dx" on the RHS is cut out.
  8. nightweaver066

    HSC 2015 MX2 Integration Marathon (archive)

    Re: MX2 2015 Integration Marathon \begin{align*} \int \cos^6 x \sin^6 x \, dx &= \int 2^{-6} \sin^6 2x \, dx\\ &= 2^{-6} \int (\sin^3 2x)^2 \, dx\\ &= 2^{-6} \int (\frac{3\sin 2x - \sin 6x}{4})^2 \, dx\\ &= 2^{-10} \int 9\sin^2 2x - 6\sin 2x \sin 6x + \sin^2 6x \, dx\\ &= 2^{-10} \int...
  9. nightweaver066

    HSC 2015 MX2 Integration Marathon (archive)

    Re: MX2 2015 Integration Marathon \begin{align*} \int \cos^6 x \sin^5x\, dx &= -\int \cos^6 x (1 - \cos^2 x)^2 \, d(\cos x)\\ &= -\int \cos^6 x - 2\cos^8 x + \cos^{10} x \, d(\cos x)\\ &= -\frac{1}{7}\cos^7 x + \frac{2}{9} \cos^9 x - \frac{1}{11}\cos^{11} x + c \end{align*}
  10. nightweaver066

    Cue sports at UNSW

    I think it's free pool and table tennis every Tuesday from 12pm or something at the roundhouse if things haven't changed. There are no snooker tables.
  11. nightweaver066

    Textbook lists for Actuarial/ Eco at unsw ?

    Course packs are available from the UNSW Bookstore. Your supplementary resource is google.
  12. nightweaver066

    Textbook lists for Actuarial/ Eco at unsw ?

    I didn't need to do ACCT1501 and I haven't done MGMT1001 yet.
  13. nightweaver066

    Good and Decently Priced Restaurants?

    http://www.urbanspoon.com
  14. nightweaver066

    Textbook lists for Actuarial/ Eco at unsw ?

    For ECON1101, the course is very centred around the textbook and homework is assigned from it so you need to buy it. For MATH1151, no need for the textbook. For FINS1613, I didn't find the textbook useful and you really just need MyFinanceLab (if the lecturer is the same and homework is still...
  15. nightweaver066

    Laplace education, Strathfield

    I've heard great things about English there. I'd say have a trial lesson and see how your daughter finds it.
  16. nightweaver066

    Post Your 2015 Sem 1 Timetable

    Several reasons: - Prioritising other things such as work, girlfriend/boyfriend, social activities. - Ceebs. - You know that you're able to effectively self-study and feel that you don't need to. - etc. Basically you find better things to do with your time and *hopefully* you know you'll do...
  17. nightweaver066

    Post Your 2015 Sem 1 Timetable

    Sometimes lectures/tutorials don't end early (depends on your lecturer/tutor) and so it's unavoidable. I had a lecture in Biomedical Theatre (very top of campus) which always ran till the end of the hour and then another lecture in Chemical Sciences (all the way at the bottom of campus). I...
  18. nightweaver066

    Post Your 2015 Sem 1 Timetable

    It's okay. Maybe it can be condensed in to 3 days. Try using Octangles http://cgi.cse.unsw.edu.au/~oliverc/octangles/
  19. nightweaver066

    Post Your 2015 Sem 1 Timetable

    Don't doubt UNSW internet ;)
  20. nightweaver066

    Core Courses for Mathematics and Statistics??

    See this: https://www.maths.unsw.edu.au/futurestudents/science
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