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    MATH2601 help please!

    Who is your tutor? When I did this, there were two tutorial classes I think. So one of my friends went to one and I went to the other from week 3-4 (since first weeks are quite easy). Shared solutions and made a study group consisting of a handful of people. Solutions does not guarantee...
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    Best uni for maths

    Your proof has uncertainty and lacks rigour, so it failed to convince me. Yes, you can get different stats for different universities, but you haven't differentiated UOW from other competing universities. Why do those specific awards make UOW trump other universities? The course satisfaction...
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    Participants for research survey :)

    Interesting survey and proposed solution! :)
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    First Year Mathematics A (Differentiation & Linear Algebra)

    Re: MATH1131 help thread Why can't I know this if I'm in high school? The concepts used in this question can be understood by anyone. It's just that the mathematical language can be frightening and difficult to comprehend but when a diagram pops up, the tunnel will become clear :) Not sure...
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    UNSW chit chat thread

    Re: UNSW chit chat thread 2016 I hate that feeling of getting Rekt
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    First Year Mathematics A (Differentiation & Linear Algebra)

    Re: MATH1131 help thread This is not clear...
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    First Year Mathematics A (Differentiation & Linear Algebra)

    Re: MATH1131 help thread Example says: If function is strictly increasing on interval (a,b), then f has exactly one real zero in [a,b]. Note: f(a) and f(b) have opposite signs. If function is strictly decreasing on interval (c,d), then f has exactly one real zero in [c,d]. Note: f(c) and f(d)...
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    First Year Mathematics A (Differentiation & Linear Algebra)

    Re: MATH1131 help thread What if f: (1,4) -> R such that f(x) = 1000 - (x-3)^2? (no zero) We need more info, can you show what example was above this?
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    First Year Mathematics A (Differentiation & Linear Algebra)

    Re: MATH1131 help thread Why do you think it's 1 real zero? I think we need more info
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    Best uni for maths

    Why does UOW have good employment prospects compared to other universities? Have you considered majors and program structure?
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    Prelim 2016 Maths Help Thread

    cos^2 = 1 - sin^2 and you are done
  12. P

    Circl geo quick question

    Part 1 should be done with 1 reason because 1 mark: one pair of opposite angles are supplementary Part 2 and 3 links don't work
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    HSC 2016 MX2 Complex Numbers Marathon (archive)

    Re: HSC 2016 Complex Numbers Marathon Who is that? It's not me. Last seen: Yesterday 3:16 PM No activity since some liking of comments just over a week ago. What is their purpose and why aren't they doing anything? I'm thinking it's an alternate account to private message some people for...
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    HSC 2016 MX2 Complex Numbers Marathon (archive)

    Re: HSC 2016 Complex Numbers Marathon Highlight below to see answer. Alternatively, press (CTRL + a) to highlight the whole page which is quicker. Consider (1 + i(x - y)) (1+ i(x + y)) (x2 - y2 - 1 + 2ix) and expanding = (1 + 2ix - (x2) - y2 - 1)) ((x2 - y2 - 1 + 2ix)) = -4x2 - (x2 - y2 -...
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    HSC 2016 MX2 Complex Numbers Marathon (archive)

    Re: HSC 2016 Complex Numbers Marathon Highlight below to see answer: (1+i)(1+2i)(1+3i) = -10 arg((1+i)(1+2i)(1+3i)) = arg(-10 ) arg(1+i)+ arg(1+2i)+arg(1+3i) = \pi arctan(1) + arctan(2) + arctan(3) = \pi EDIT: added "spoilers"
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    Which unis in Sydney offer a Degree in Computer Science?

    Lol, what are students learning at UOB? Kappa
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    HSC 2016 MX2 Complex Numbers Marathon (archive)

    Re: HSC 2016 Complex Numbers Marathon My bad, I forgot this was for the user, wu345. Angle WU1O is 90 degrees by tangent-radius theorem, hence OW is diameter. Beaten by the swift puɐɹפǝʇuI
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    HSC 2016 MX2 Complex Numbers Marathon (archive)

    Re: HSC 2016 Complex Numbers Marathon Adding \overline{w}(u_1+u_2) + w(\overline{u_1}+\overline{u_2}) =4 Taking reals Re(\overline{w}(u_1+u_2))= 2 Now finding imaginary \overline{w}(u_1+u_2) - w(\overline{u_1}+\overline{u_2}) = c(\overline{u_1+u_2})(u_1+u_2) -...
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