MATSEC AM Pure Mathematics Complete Prep Course — Lesson 61: Products and quotients in polar form

Sarah Mitchell teaches how multiplication and division behave in polar form: moduli multiply and arguments add, moduli divide and arguments subtract. She covers bringing arguments back into the principal range from minus pi to pi, the stretch-and-rotate picture on the Argand diagram, multiplication by i as a ninety degree turn, reciprocals, De Moivre's result for powers, and choosing between polar and a plus i b form.

Lesson 61 of 158 in the MATSEC AM Pure Mathematics Complete Prep Course audio course from ExamPrepRise.

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