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    First Year Subject Advice for 2018

    Hello, I'll be studying at the University of Sydney as a first year student this year, and I had a few questions. Firstly, here are my provisional units of study for next year: CHEM1991 MATH1902 MATH1921 PHYS1903 INFO1110 (?) CHEM1992B MATH1905 MATH1923 PHYS1904 INFO1113 (?) So, I'm doing the...
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    Can we use kanji outside of the syllabus?

    So I've gotten bored in the last couple of months and have learned a lot of kanji which aren't in the syllabus. I can use these right? They're not very complicated ones, I've just learned basically all the kanji that are taught in grades 1 and 2 (going of Jisho.com) that are not in the regular...
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    University Math Past Papers

    Hi, does anyone know where I can find past papers for the courses MATH1901 and MATH1903 at USYD or any other similar courses at other universities? It's basically just calculus. Keep in mind I am NOT a university student, I've just been doing some learning by myself and wanted to do some...
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    Folk Music

    My favourites right now: Honestly, everything I have heard from these two bands is amazing.
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    Cathode of a dry cell?

    Ok, so as my title is really vague, here is the detailed question. So, basically the cathodic reaction for a dry cell is NH4++MnO2+H2)+e-->Mn(OH)3+NH3, according to my textbook anyway (I've found different reactions online which is annoying, so if I'm wrong just say). Now, here the Manganese is...
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    What Math should I be doing before uni?

    Hey guys, so I'll be completing my HSC for math this year, but still want to do math and not lose my skills during the rest of my HSC. I'm just wondering what math I should be doing during the year, mostly in regards to university stuff. Also, as I am just doing it for fun, although fun is...
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    Did I prove this right?

    Hey, so basically I'm really not sure if my method for question 2. i) is right at all. I'm confident with the other parts, but if I've failed somewhere just let me know. Anyway album to working and question is here: http://m.imgur.com/a/1lSPf Thanks in advance!
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    What does the dot mean in the middle of chemical compounds?

    So my teacher set some homework but I've come across something we haven't yet learnt. We are given two compounds (I think) malachite, Cu(OH)2.CuCO3, and azurite, Cu(OH)2.2CuCO3, and we have to do stuff but that doesn't matter. My question is what exactly the dot means in the substances. I'm not...
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    Do you have to use the induction hypothesis when proving by induction?

    Title, I was just doing an induction proof (which could easily be done algebraically anyway) and while proving for n=k+1, I could prove it either by using the induction hypothesis or just algebra. I didn't know whether I had to use the induction hypothesis or not, so just asking here. Thanks in...
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    If I moved an object in a circle, would I have done any work?

    I know work is a scalar quantity, but this question came into my mind and I was not entirely sure. I'm guessing yes, because I applied a force over a distance, but I don't think I would have changed the kinetic energy of the object if I bring it to a stop at the end. Any answers would be...
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    Confused about Cellular Respiration

    Ok, so the only thing I'm confused about it how many ATP molecules are produced in the krebs cycle/citric acid cycle. The internet says heaps of things, one teacher says 34 and the other 32. Also, is the krebs cycle everything after glycolosis or just extravting the ATP from the pyruvate in the...
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    Homogenous and heterogenous mixtures

    Ok, so to start off, yes I know what bith of these are. A homogenous mixture is a mixture which is basically the same through pout and a heterogenous is not the same throughout. I get that. What I don't get is the line between the two mixtures. To me is seems as though it is a very blurry line...
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    Polynomials question

    Hey guys there's a question that I keep barely getting wrong, but I don't know what I'm doing wrong. Question: http://m.imgur.com/YVgWQ9S Instead of getting 1/24 in front of the stuff for a2, I get 1/12. Any help would be appreciated.
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    Did I prove this right?

    Hey i have a proof but I'm doubting how true it is. Also would like any other methods, but mainly can someone say my proof is valid or not. Here the proof: http://m.imgur.com/a/fuQ9F Thanks Edit: Oh, and also the question for some reason is below the proof, must've uploaded it wrong. But the...
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    When to start past papers?

    Would the best time to start be right after I've completed a topic, then I can start the past papers on that certain topic? My friend has already started, but I think it's a bit early. What do you guys think?
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    Sequence question

    Hey BoS, I would like to know how to show that a sequence follows a certain rule, is all you do substitute in values for n and show that for the first couple of values of n it is true, or do you have to rigorously prove the sequence. My question is with c), http://m.imgur.com/1uqEY6t I feel...
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    Shorter solution to this trig question?

    Hey, I did a question and I ended up taking a whole page of working out, and I'm guessing I did it the complicated way. I'll post my working and the question, any shorter methods would be appreciated, thanks! http://imgur.com/3W1niXM http://imgur.com/85sr1Z4
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    Help with a question

    Hey, I was doing a James Ruse past paper and there's this one question I couldn't do, any help would be appreciated, thanks! http://m.imgur.com/USXsS4N
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    Permutations and Combinations Resources?

    I just saw the circle geo thread and thought it would be a good idea to post this. The only ones I can find online are really easy, much easier than any tests in actual exams. Does anyone have a good amount of hard permutations and combinations questions.
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    Any easier/quicker/more correct solutions to this problem

    I have a question that I feel i worked out rather weirdly, so I was hoping there was an easier way to do these types of questions. I will post the question and my solution. Question: My solution: http://m.imgur.com/Ej5ZhAt My solution is correct by the way, just looking for other methods.
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