MATSEC AM Pure Mathematics Complete Prep Course — Lesson 60: The Argand diagram and polar form

Sarah plots complex numbers on the Argand diagram and converts them to polar form. She builds the modulus from Pythagoras, fixes the principal argument in the interval from minus pi to pi, and drills the quadrant adjustments of pi minus alpha, alpha minus pi, and minus alpha. Worked examples cover one plus i, minus one plus root three i, and minus three minus three i, alongside the inverse tangent trap and the conjugate rule.

Lesson 60 of 158 in the MATSEC AM Pure Mathematics Complete Prep Course audio course from ExamPrepRise.

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