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lesson 18
1 hour

Exploiting the Connection to Trigonometry


Description

This lesson builds on the concepts from Topic B by asking students to extend their thinking about the geometric effect of
multiplication of two complex numbers to the geometric effect of raising a complex number to an integer exponent
(N-CN.B.5).

This lesson is part of a two-day lesson that gives students another opportunity to work with the polar form
of a complex number, to see its usefulness in certain situations, and to exploit that form to quickly calculate powers of a
complex number.

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Credits

From EngageNY.org of the New York State Education Department. Precalculus and Advanced Topics Module 1, Topic C, Lesson 18. Available from engageny.org/resource/precalculus-and-advanced-topics-module-1-topic-c-lesson-18; accessed 2015-05-29.
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