River Valley High School — H2 Maths Prelim Questions & Worked Solutions
2025 · Paper 1 · Complex NumbersUse the conjugate root theorem to find cubic coefficients b, c, d in terms of a.●●○2025 · Paper 1 · Complex NumbersSolve a quadratic with complex coefficients via a complex square root.●●●2025 · Paper 1 · Maclaurin SeriesImplicit differentiation of a differential equation to build the Maclaurin series for y and e^(arctan 3x).●●○2025 · Paper 2 · Complex NumbersRotate a complex vector 90° and use parallelogram diagonals to find vertices.●●○2025 · Paper 2 · VectorsNEO trajectories: line-plane crossing, non-intersection condition, angle between lines, and shortest distance.●●●