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  1. W

    Past papers!! Need some advice

    You gotta know your stuff thoroughly and know what the question is asking - It might be better when starting off to look at the criteria before you write an answer to a 4+marker (or get a tutor/friend/teacher to get you started, ask them to explain what the question wants and to give you a basic...
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    HSC 2016 MX1 Marathon (archive)

    Re: HSC 2016 3U Marathon Thanks for help again, I got everything up to the last part of 27 where you said using the 'stars and bars' formula (not sure if i have learnt this yet - is this binomial?). Also sorry my bad, Paradoxica, read calculator wrong hahaha, limit should be 0 not -infinity
  3. W

    HSC 2016 MX1 Marathon (archive)

    Re: HSC 2016 3U Marathon http://i.imgur.com/CQjSJHO.jpg If someone could please help me with these two that'd be awesome :) http://i.imgur.com/oXnNdG3.png Doesn't seem like people are too keen on probability/perms and combs though haha
  4. W

    HSC 2016 MX1 Marathon (archive)

    Re: HSC 2016 3U Marathon cheers again, solving these qs really helps mate :D - two more questions though about those 2 - 1. what if the parabola is (y+1)^2=4a(x+1), wouldn't the locus be y=-1/2 then? 2. how did you know that identity sin 3a/4 =... ?
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    HSC 2016 MX1 Marathon (archive)

    Re: HSC 2016 3U Marathon is this it? http://i.imgur.com/yEUxJjG.jpg
  6. W

    HSC 2016 MX1 Marathon (archive)

    Re: HSC 2016 3U Marathon What about this one? Also, if anyone is looking for a challenge (use products to sums) Prove 64sin10sin20sin30sin40sin50sin60sin70sin80sin90=3/4 (angles in degrees)
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    HSC 2016 MX1 Marathon (archive)

    Re: HSC 2016 3U Marathon Wow! I didn't realise there was so much to this question... Thanks so much! (for solving the polynomial q)
  8. W

    HSC 2016 MX1 Marathon (archive)

    Re: HSC 2016 3U Marathon Can someone please do http://i.imgur.com/kg2tUJs.png ?
  9. W

    HSC 2016 MX1 Marathon (archive)

    Re: HSC 2016 3U Marathon Nice Question! I have a feeling this isn't the quickest way of doing it, and it uses identities not in the 3u course but anyways ( I don't know how to use Latex so I took a picture instead) http://i.imgur.com/X0pCTvs.jpg?1
  10. W

    14 Units - What Subject/s To Drop?

    I don't think you should do double 4 unit - both extension IIs require a lot of work, you might end up not having time for your other subjects. Eg. Maths Extension I and II are probably already going to take 2-3 hours a day on homework alone. However, i guess if you are really passionate and...
  11. W

    How to study for practicals

    Not sure if i can post the full thing as it belongs to my school but here's information that may help: 9. Discussion: a) Assess the reliability of the data you used. Do your repeated results show consistency? You must justify any judgements you make. If secondary source data or information is...
  12. W

    Subject Selection (14/15 Units)

    If you're doing that well in maths, why not do 4 unit? It will help your understanding of physics too
  13. W

    2K15 Prelim - Introductions Thread

    Hello all Advanced English English Ext 1(Compulsory in yr 11 for my school, dropping next year) Maths 2U Maths Ext 1 (and 2 next year) Music 2 accel. (and Mus Ext next year) Physics Chemistry
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    How to fight procrastination and boost productivity?

    1. Deactivate facebook 2. Block youtube. 3. Suppress the urge to eat instead of doing work. 4. Just do it. If you are really struggling to control your time on the internet you can use this helpful extension https://chrome.google.com/webstore/detail/stayfocusd/laankejkbhbdhmipfmgcngdelahlfoji?hl=en
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    Prelim 2015 Chit Chat Thread

    1. Read more novels. Preferably classics (eg. 'The Great Gatsby' is great). They will improve your vocabulary and expression. 2. Acquire a good essay and absorb its structure, analysis of techniques etc. 3. PREPARE. Sounds simple but failing to prepare is preparing to fail. Write an essay...
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    Physics- The World Communicates

    In order for EMR to be utilised as a means of communication, it must meet certain requirements. Although higher frequency EMR carries more data, it also has the potential to be harmful to humans. That's why anything above visible light (UV, X-rays and gamma rays) aren't frequently (if at all)...
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