Description
In this lesson, we return to the rectangular form of a complex number to show algebraically that we can find the square roots of any complex number without having to express it first in polar form. Students use the properties of complex numbers and the fundamental theorem of algebra to find the square roots of any complex number by creating and solving polynomial equations (N-NC.C.8 and N-NC.C.9).
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From EngageNY.org of the New York State Education Department. Precalculus and Advanced Topics Module 3, Topic A, Lesson 2.
Available from engageny.org/resource/precalculus-and-advanced-topics-module-3-topic-a-lesson-2; accessed 2015-05-29.
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