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  1. integral95

    UNSW 17/S2 Official Results Thread

    I have a double exam on the 18th (saturday too FML) and the last exam on the very last day in the exam period, the 20th. Just casually chilling at home doing some maths while the others are out there having a good time.
  2. integral95

    UNSW 17/S2 Official Results Thread

    Mate I haven't even started my exams yet.
  3. integral95

    Integration Problem

    To get the area of the triangle, you have to use the perpendicular distance from the line AB to P, that's the height. The base is of course the distance of AB. Then find the max area using the max min theorem. Which turns out to be 3/4 of part i)
  4. integral95

    Will a subject I failed still be recorded on my HSC?

    Universities wouldn't really care about a horrible mark like that especially if it isn't counted. They only care about ATAR and the marks that are relevant for the degree you would study e.g Math degrees may take your math marks into account. Lol you would have separate certificates for each...
  5. integral95

    2017 HSC Mathematics Paper thoughts

    Some one please send link to the paper thanks.
  6. integral95

    Question help

    10000(1.2)^{24}
  7. integral95

    Study Tips for Maths

    Clearly you're so good at math that you can just wing it through like a boss, why bother studying? But in all seriousness, do you know what your weakest topics are? normally I would spend a bit more time on those compared to my stronger topics (but you should still put some time in those as...
  8. integral95

    How do you do these projectile motion questions?

    I'll only give out the steps for Q10 $Deriving the equations in terms of t would yield$ \ \ \ x= Vtcos \theta \ \ \ y= Vtsin \theta - \frac{gt^2}{2} \\ \\ $But since the question has no mention of the variable time, we should eliminate it. So simultaneously we should sub the first equation...
  9. integral95

    repeating 2U maths

    Also are you currently doing 3U math? if not then repeating 2U in year 12 should give you a much better much since you're more exposed to a higher level of mathematics.
  10. integral95

    Dropping from a major to a minor

    So it works like this, I'm currently studying Adv Math/ Economics at UNSW, I decided to combine my math degree with eco since it would give me better job prospects (well that's what I think) and it seemed interesting to me. However as I'm as going through halfway of eco, I'm starting to hate...
  11. integral95

    Further Trig Questions

    I guess we have to step it up a notch with your knowledge of general solution. So the equation could be re-written as the cos functions. \cos(8\theta) = \cos(5\theta+\frac{\pi}{2}) \Rightarrow \\ \\ 8\theta = 2k\pi \pm (5\theta +\frac{\pi}{2}) \Rightarrow \\ \\ \theta =...
  12. integral95

    Further Trig Questions

    Alpha can't be zero, but it doesn't say that theta can't be zero.
  13. integral95

    Further Trig Questions

    Your answer is right, along with theta = 0
  14. integral95

    Further Trig Questions

    Welp I can't seem to use the "hence" method. But for otherwise I just did like sin(5 \theta) = - cos(8 \theta) \\ \\ sin(5 \theta) = -sin(\frac{\pi}{2} - 8 \theta) = sin(8 \theta - \frac{\pi}{2}) \\ \\ \Rightarrow 5 \theta = 8 \theta - \frac{\pi}{2} \\ \\ \Rightarrow \theta = \frac{\pi}{6}
  15. integral95

    Struggling in S1

    Sorry I don't understand that. I can't give you any info on your specific degree, but I can say that it's not a bad thing if you transfer from UNSW to UTS, I know someone who did that since he unfortunately failed many courses and got an fail average as a result. He's doing alright at UTS I heard.
  16. integral95

    Feel really lost in life... is uni right for me?

    Really sorry to hear all this :'(
  17. integral95

    3D Trig Question

    I think it should be L T1 T3, otherwise it doesn't make sense.
  18. integral95

    integration area of sinx and cos x

    Going to be a bit pedantic here, but you shouldn't be using your limits in terms of degree but in radians, it could create a lot of awkward scaling factors especially if you're combining trig functions with some linear function. e.g \int_0^{45^{\circ}} \ \ sinx - x \ dx wouldn't give you the...
  19. integral95

    Help pls!!

    Aye Q2 is just asking for the change in the area of the base, not the entire surface area.
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