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z1, z2 and z3 lie on a circle. The origin also lies on the circle Prove 1/z1, 1/z2 and 1/z3 are collinear

Re: HSC 2018 MX2 Marathon ah that makes more sense. we haven't done binomial expansions yet so looks like ill have to do it the long way haha

Re: HSC 2018 MX2 Marathon I understand the 3U method, and I understand the proof for the 4U method, I'm just stumped as to how ur supposed to continue with the 4U method, I seem to be going around in circles lmao

Re: HSC 2018 MX2 Marathon Find an expression for cos^4x in terms of cos4x and cos2x Edit: The question is from terry lee so I'm guessing it implies that you use 4U complex techniques rather than 3U, I'm not sure if you can even use 3U for this...

Software is completely dependant on the type of teacher you get. A lot of software teaches are absolute horseshit and you end up self learning the course if you wish to do well in it (that is, if don't get completely demotivated towards the subject and end up not studying at all - thankfully I'm...