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Of course with the syllabus it can be hard to say what is in it. However, the expectations-augmented Phillips curve is an integral part of the theory of the Natural Rate of Unemployment and NAIRU; it in truth explains why the NAIRU exists. Ergo i would believe that it should be covered under...

I got 49 in 3u last year- and after going through the paper with friends that was for a raw score of about 89%. Ergo, i would imagine that a score of around 80% in 4u will get a similar mark (95+) because the time constraints are worse and questions are significantly harder

Definately Euler's - especially cause it gives negative logs- and the proof to get there is amazing as well Pi/4=1/1-1/3+1/5-1/7... The integral of sec x - although hardly a formula is an incredibly cool trick 2^n=nC0 + nC1 ... NcN tan a + tan b + tan c = Tan a * tan b *tan c (when a, b, c are...

And they ask how long until the HSC goes computerised. Interestingly, a study has shown that teachers subconsciously mark much harder if its typed- even if from an exam with time pressure- because they are used to polished typed essays. For myself, (7 pgs + 7 pgs + 5 pgs)*10 words per line*21...