H2 Maths Notes (JC 1-2): 4.1) Complex Numbers and Argand Diagrams

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07 Oct 2025, 00:00 Z

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Q: What does H2 Maths Notes (JC 1-2): 4.1) Complex Numbers and Argand Diagrams cover?
A: Cartesian and polar forms, loci, and standard manipulations for H2 Maths Topic 4.1.

Before you revise
Keep polar and exponential forms side by side-most Argand proofs demand switching between them quickly. Draw every locus and label arguments clearly.

Status: SEAB H2 Mathematics (9758, first exam 2026) syllabus last checked 2025-11-29 (PDF last modified 2024-10-16). Topic 4.1 scope unchanged; Section A still contributes 70 marks per paper (Pure Mathematics).

Core Definitions

• Complex number $z = x + iy$ with real part $x$ and imaginary part $y$.
• Modulus $\lvert z \rvert = \sqrt{x^2 + y^2}$