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  1. D

    MATH1081 Topic 1 Revision mega-thread

    Hmm so for Q 3 i'm not sure how you mean i did the reverse distributive law wrong... here is my working On 1st line we get (AUB^c)U(AUB) - De morgans law, second line we use the reverse distributive law The distributive law says: "A ∩ (B ∪ C) = (A ∩ B) ∪ (A ∩ C)" So we note the A's common in...
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    MATH1081 Topic 1 Revision mega-thread

    For 2009 Test 1A Q2 i) is it fine to write "f is 1-1 iff for every y an element B, there is at most one x and element of A such that f(x)= y" and " g is 1-1 iff for every y an element of C, there is at most one x an element of B such that f(x)=y" part ii) i said "suppose g o f(x) = g o f(y)...
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    MATH1081 Topic 1 Revision mega-thread

    Also help me out with 2010 2B Q2 plz
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    MATH1081 Topic 1 Revision mega-thread

    K i got confused and thought u said range was [0,1] for this specific Q not for a some general example all g
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    MATH1081 Topic 1 Revision mega-thread

    im really bad with these Qs so help me out a bit here how did u get the range as [0,1] ? and for the 2 values u get u go like: x^2(2x+3) then x=0 or x= -3/2 right??
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    MATH1081 Topic 1 Revision mega-thread

    Also how can you prove Q2 2009 Test 1B is invective or subjective ? i think form the graph it does fail the horizontal line test but how would u write out a proof for this one??
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    MATH1081 Topic 1 Revision mega-thread

    Yeah k fair enough, for the one that is false u can just say {{a}} is a sub set of A3 not an element right? could u also check my answer for 2009 Test 1A Q1 before i add it to the main post
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    Any here doing MATH1081 (Discrete mathematics)?

    They are recorded see the echo 360 link from the moodle page its on the left hand side
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    MATH1081 Topic 1 Revision mega-thread

    Oh yeah right but, i dint but u can just see form part i)
  10. D

    MATH1081 Topic 1 Revision mega-thread

    Okay so as we have a topic 1 test this week in our first tute and some of us are still struggling with a few things here and there (including my self) i thought this would be helpful. We can collaborate on answers to past papers and hopefully get any concepts explained to us by each other...
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    should I drop discrete maths?

    Yeah i would also advise not to drop it just cause you are falling behind a little, you can catch up in a weekend if u are dedicated enough. For the upcoming test this week on topic 1 i am thinking of doing a revision thread(im also sketchy on a few concepts) so that will probs help you out, and...
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    1131/1141 Assumed Knowledge Quiz

    How did u go in Ext1 tho in year 12 e3?e4?, im doing most of the revision questions cause i forgot all my trig and graphing stuff... any tips tho?
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    1131/1141 Assumed Knowledge Quiz

    Also forgot to ask it it timed ? /how much time do u get per Q Sent from my iPhone using Tapatalk
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    1131/1141 Assumed Knowledge Quiz

    Well for 1131 only ext.1 is a requirement but for 1141 4u is a requirement i think... so if they have different quizzes for ppl enrolled in 1141 they would be they only ones with 4U questions i imagine.
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    1131/1141 Assumed Knowledge Quiz

    Thanks for your reply, Is there any topic they are largely on like integration etc?
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    1131/1141 Assumed Knowledge Quiz

    I was wondering how hard the Assumed Knowledge Quiz test is (plz reply if u have done it and what topic the questions are largely on) and should i spend a day or 2 going over ext1 work to go well in it? Also what does it mean by "Remember you have 5 attempts and we take the best of them" do...
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    UNSW Chit Chat Thread 2014

    I'm in a similar position to thief I live on central coast so I don't wanna be at uni longer that I have to and also doing an engineering degree means u have bad timetables :p Btw eat in lectures or tutes? Ty anyway Sent from my iPhone using Tapatalk
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    UNSW Chit Chat Thread 2014

    Yep they did Sent from my iPhone using Tapatalk
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    UNSW Chit Chat Thread 2014

    How do we go about buying food from subway etc when we have a full day eg. Tomz I have 11-5 lecture tute lecture. How much time Do we have to get to and from classes, eg. If it says it finishes at 1 does it usually finish early and do tutes and lectures start at exact given time?? Sent from my...
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