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    Bored Of Studies vs Board of Studies

    I use board of studies about 4 times during my HSC: 1. To get the syllabus 2. to check my ranks, 3. to change my phone number 5. to check my marks I used this site almost every day. It had an abundance of papers + answers to many of them, people with experience in both marking the HSC...
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    Problem with an exponential tangent Q...

    A tangent is a straight line, y = ex is not a straight line, so the answer is wrong.
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    Interfaith dialogue and Ecumenism definitions

    World council of churches (WCC), National council of churches in australia (NCCA), Sydney college of divinity, Australian college of theology. Its all in the syllabus under the ecumenical dotpoint.
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    Chain Rule

    function of a function = chain rule. Its the same thing just different name: y = [f(x)]n Let u = f(x), du/dx = f'(x) y = [u]n dy/dx = dy/du . du/dx = n[u]n-1.f'(x) = n[f(x)]n-1.f'(x)
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    The different sections of maths!

    Unfortunately, when you get to uni you'll find that boring math can be quite hard and cool maths can be quite easy. You'll also find he is beyond a 4th year honours uni student :p But in general I do agree with Buchanan. That classification system is needed, its way too broad to simply place...
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    Timing in the MX2 exam

    Thats one of the many forms the rule takes
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    Chain Rule

    Chain rule: If y = [f(x)]n then y' = [f(x)]n-1.f'(x) Example: y = [sinx + x]3 In this case, f(x) = sinx + x and f'(x) = cosx + 1 So y' = f(x)2.f'(x) = [sinx + x]2.(cosx+1)
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    Abbreviations for similar triangles

    You CAN use symbols so long as they are accepted ones. You cant go off and make up your own symbols.
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    Abbreviations for similar triangles

    What abbreviations can you use for similar triangles?
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    The different sections of maths!

    My personal favourite is mathematical computing, thats what I aim to get into with my Comp science/pure maths combined degree. I also love several variable calculus, from the little ive done of it, it seems to be the most interesting to me.
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    2004.

    CSSA paper and HSC paper have nothing to do with each other. The HSC writers would have written the HSC paper before they've even seen the CSSA questions.
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    syllabus dot points?

    Oh dear, what was I looking at :(
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    syllabus dot points?

    http://www.boardofstudies.nsw.edu.au/syllabus_hsc/pdf_doc/studies_religion_syl_05.pdf Starts from page 33
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    Does any body have the 2005 CSSA Trial Solutions.

    Yes http://community.boredofstudies.org/attachment.php?attachmentid=10260 There may/may not be any errors in there.
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    couple questions, perms/comb der

    For the first one, I think you assume all the pink ones are the same and all the white ones are the same, hence with no restrictions it'd be 16!/8!8!. Same for part 2 of that question
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    2004 Q9 (c) (iii)

    when x = e, f(e) = lne/e = 1/e Now the max value of f(x) is 1/e, ie lnx/x <= 1/e elnx/x <= 1 elnx <= x lnxe <= x xe <= ex ex >= xe
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    Projectile Motion Question

    x = 25tcos40 y = 25tsin40 - 5t2 when it hits the ground, y = 0 25tsin40 - 5t2 = 0 t = 0 or t = 5sin40 When t = 5sin40: y' = 25sin40 - 10t = 25sin40 - 50sin40 = -25sin40 x' = 25cos40 Now to work out velocity you draw the triangle and use pythagoras/trig ratios You get...
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    Stats question

    Nope i said 9 :(
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    Stats question

    Thanks! If you're in the Friday @ 11am tute then I am in there.
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    Stats question

    I got this question in the quiz and its been annoying me since i guessed the answer. It went something like: If P(X = k) = e-33k/k! find E(X-1)2 Anyone know how to do it? I tried expanding but it got really ugly and figured it was better to use my time on the other questions and guess...
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