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I think a mark in the mid 80s would be good enough for a band six, but its anyones guess what it would be like this year

You can get the papers from teh BOS site www.boardofstudies.nsw.edu.au For solutions, there exists solutions uploaded by BOS members. Check the resources section of this site, or search for it in the forums Good luck :)

Yeah, thats my plan as well..cant go wrong with two calculators Plus I just changed the battery in my calculator last week

Yes, its just 1/x except with the 1/ln 2 pulled out the front so its 1/xln2

y = log2x = logex/loge2 (change of base formula) y' = (u'v - uv') / v2 where u = ln x and v = ln 2 so y' = (1/x)(ln2) - (lnx)(0) / (ln 2)2 = (ln 2)/x[(ln2)2] = 1/xln2 lol, I really do need to revise :p Read Trev's solution below

Thats correct. You can also use the change of base formula, u get the same answer log38 / log32 = log28 = log223 = 3log22 = 3

Solution to Question 66 Question 67 Express log38 / log32 as an integer

Just to add to what Ghost said If the last question asks to differentiate a very large expression ( for example question 10 in 2002, 2003), and it involves numerous fractions then do not attempt to simplify the expression first by finding a common denominator. Differentiate it first, then...

My teacher marked the HSC for extension two last year I asked her if you get zero for drawing in pencil, she said thats rubbish - the only reason they ask that you draw in pen rather than pencil is because the markers usualy mark late at night and its hard to see anything thats drawn in pencil...

Solution to Question 1 Question 2 The acceleration of a particle is given by the equation a = -4 / (x+1)2 If the particle begins at the origin with velocity 6 m/s , find an expression for the velocty, v, of the particle.

You should aim to complete questions 1-8 within 1 hour 30 minutes (maybe 1 hour 45 minutes) so u can leave 1 hour for the last two questions and half an hour for checking, if possible.

Next question: A max invests $900 at the beginning of eachyear in a superannuiation fund. If interest paid is 12% p.a. on his investment, how much would he expect to receive if he retired after he had contributed to the fund for 40 years?

yeah, thats right, sorry bout that - Dont do what I did in an exam! :D

Please post up the question where f''(x) = 0, an inflexion point exists where f''(x) >0, that point is concave up and therefore a minimum where f''(x) <0, that point is concave down and therefore a maximum EDIT: Like word pointed out beloe the first point f''(x) = 0 does not necessarily...

Well, The last questions gonna involve differentiation and minimisation/maximisation There's always co-ordinate geometry (like equation of lines and intersections etc. ) Geometry is in virtually every paper, usually they like to pick simlar triangles Trig is always there too Simple...

Draw up the whole circle and use the cosine rule; this was a beast of a question lol

Same here :D :D

Damn, we gotta get some of those carboard things 90% of the desks in our hall are stuffed, and I got a rickety one :( It was mroe distracting for the other ppl than for me though

2 hours of english is enough already

To reduce silly mistakes, you should note the type of questions you get wrong and see any patterns of errors you are making. For example if you keep making errors in inequalities, then get out the textbook and do a whole exercise, slowly, and keep practising them. Also its a good idea not to...