H2 Maths Notes (JC 1-2): 4) Complex Numbers
07 Oct 2025, 00:00 Z
Reviewed by
Marcus Pang·Managing Director (Maths)
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Q: What does H2 Maths Notes (JC 1-2): 4) Complex Numbers cover?
A: Complex numbers in Cartesian form, modulus/argument loci, conjugates, quadratic roots, and Argand-diagram geometry for H2 Maths Topic 4.
Before you begin
Review your Additional Maths introduction to complex arithmetic so operations with feel fluent. For the 2026 syllabus, focus on Cartesian form and Argand geometry (polar/exponential representations and De Moivre workflows are excluded).
Status: SEAB H2 Mathematics (9758, first exam 2026) syllabus last checked 2026-01-13 (PDF last modified 2024-10-16). Topic 4 includes quadratic roots, modulus/argument, conjugates, operations, and Argand geometry; polar/exponential representations are excluded.
4.1 | Core Concepts and Forms
Representations
- Cartesian form: with real part
