WitCH 63: A Separate Reality
The following comes courtesy of frequent commenter, John Friend. It is an exercise and solution from Cambridge Specialist Mathematics 3&4.
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The VCAA Draft and its Third Rail
We’ve looked a little more closely at VCAA’s Draft for the new mathematics VCE subjects. Yes, the time for feedback has ended, unless it hasn’t: the MAV are offering a Zoom session TODAY (Thursday 25/3) for members. God knows how or why. But in any case, it’ll be a while before VCAA cements the thing […]
WitCH 59: Stretching the Truth
This double-barrelled WitCH comes from Maths Quest Mathematical Methods 11 (top). and Cambridge Mathematical Methods 1 & 2 (bottom). It is the final in our series of Quest-bashing, at least for now.
A Choice of Difficults
You have a choice. The two questions below come from different exams: The first question was the final (half-)question from the NSW 2020 Mathematics Extension 2 Examination (scientific calculator permitted, plus provided formula sheet); The second question was the final question from the Victorian 2020 VCE Specialist Mathematics Examination (CAS calculator permitted, plus provided formula […]
VCAA’s Draft Feedback Due TODAY
We’ve been remiss in not writing further on VCAA’s draft for the new mathematics VCE subjects. It’s just, for reasons we’ll explain briefly here and flesh out elsewhere, we’ve struggled to face up to this new nonsense. But, feedback is due TODAY (midnight? – see links below), and we really oughta say something. So, here […]
WitCH 56: Fuzzy Dots
Has it occurred to anyone else that these WitCHes are a blogging Ponzi scheme? As long as we keep posting new WitCHes, no one bugs us about not polishing off the old WitCHes. What the hell; we’ll keep going until someone calls the Blog Cops. And, to continue with the scheme, this WitCH comes from […]
Rumoring Scotch
The other day we were teasing a friend and colleague who teaches at Melbourne’s Scotch College, and we got seriously puzzled. We have a question. Scotch is arguably the strongest and most prestigious school in Melbourne, now and always. Its alumni include a number of Australia’s greats, including Sir John Monash, Sir Ninian Stephen, Professor […]
WitCH 53: Parting Ways
This WitCH comes from the Cambridge text Specialist Mathematics 1 & 2.
WitCH 52: Lines of Attack
Yes, we have tons of overdue homework for this blog, and we will start hacking into it. Really. But we’ll also try to keep the new posts ticking along. The following, long WitCH comes from the Cambridge text Mathematical Methods 3 & 4 (including an exercise solution from the online version of the text). UPDATE […]
WitCH 51: Logging the Possibilities
The question below is from the second 2020 Methods exam (not online), discussed here. You may wish to brush up on your modal logic before attempting the question.