2022 HSC Question MX2 (1 Viewer)

HSCya1234567

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can anyone please draw me a diagram for this question? I read the matrix solutions (cause nesa doesn't write up solutions for it) and they dont make sense....







tysm
 

HSCya1234567

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I should really stop posting shouldn't I, just found a nice diagram from last years thread on it so never mind!
 

HSCya1234567

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actually, can someone please explain the diagram?, I understand all of it up until S2, i understand that this is the orange line, but how does that make the circle S?

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HSCya1234567

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yeah i got curious and I wanna get through to 2010 in terms of hsc papers in the 49 days we have left
 

HSCya1234567

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Why are you going from 2010?? Isn't that old syllabus stuff?

I present to you this beautiful question from the 2010 hsc called the basel problem. Try it!

Very relevant for our exam, since they haven't done an integration question 16 since 2020 I believe. Maths does not really change that much syllabus wise, obvs there is stuff I skip but its maybe 2 or 3 questions


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tywebb

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This method follows the method published in the American Mathematical Monthly in 1961:

Matsuoka, Y., An Elementary Proof of the Formula , The American Mathematical Monthly, Vol. 68, No. 5 (May, 1961), pp. 485-487.
( https://www.angelfire.com/ab7/fourunit/matsuoka.pdf )

Here it is with a bit more detail than in the American Mathematical Monthly article

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tywebb

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I present to you this beautiful question called the basel problem.
It's not really the most efficient method. There are many methods. One of the most efficient methods is using Fourier series:






You can see how much shorter that is, and actually really easy compared to Matsuoka's very long and complicated proof.
 
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SadCeliac

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I present to you this beautiful question from the 2010 hsc called the basel problem. Try it!

Very relevant for our exam, since they haven't done an integration question 16 since 2020 I believe. Maths does not really change that much syllabus wise, obvs there is stuff I skip but its maybe 2 or 3 questions


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View attachment 39467
I will try it when I feel mentally ready ❤✨
 

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