Lesson Plan

Does Every Complex Number Have a Square Root?

Curated and Reviewed by Lesson Planet

Help the class find a better way. Pupils recall finding nth roots or a complex number in polar form from a previous module to find the square root of a complex number. Using the second installment in a series of 23, scholars discover it is not necessary to convert to polar form to find the square root of a complex number. While working examples, learners find the relationship between square roots of conjugate pairs of complex numbers.

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Review factoring a sum of squares
Classroom Considerations
  • Requires the class to understand the polar form of a complex number
  • Assumes individuals are comfortable with simplifying radical expressions
Pros
  • Contains complete answers for examples, the exit ticket, and the problem set
  • Highlights sections of the lesson that use of mathematical practices
Cons
  • None
Common Core