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Hey Guys, Could someone give me an atar estimate?? Adv English 8/190 Physics 3/55 Chemistry 4/52 Ext 1 Maths 2/40 Ext 2 Maths 3/9 SOR I 10ish/85 though i doubt it will count anyway. School rank fluctuates between 180-200.

Re: HSC 2013 4U Marathon Let x= z+iy and its conjugate be x-iy. After multiplying by the conjuagtes of each fraction, combine the two to get 2x/(x^2+y^2)= 1 Hence 2x = x^2 + y^2. Moving the 2x over and completing the square: (x-1)^2 + y^2 =1 with (0,0) excluded from the locus as it would...