St Andrew's Junior College — H2 Math prelim questions & solutions
St Andrew's Junior College · Paper 1Simultaneous complex equations with a modulus, plus a conjugate-point Argand argument.St Andrew's Junior College · Paper 1Show two lines are skew, reflect a point in a plane, find a plane's equation.St Andrew's Junior College · Paper 2Root symmetry, conjugate roots, and factorising a complex-coefficient cubic.