How can I find the rules for deriving a complex number without a complex root?

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Homework Help Overview

The discussion revolves around finding the rules for deriving a complex number, specifically the cube root of the complex number \(-9 + 46i\). Participants explore various methods and interpretations related to complex numbers and their roots.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning, Problem interpretation

Approaches and Questions Raised

  • Some participants question whether the goal is to factorize the expression or simply find the value of the root, suggesting the use of trigonometric form and De Moivre's theorem. Others discuss the relationship between the components of the complex number and the factors of its cube.

Discussion Status

The discussion is active, with participants sharing various insights and methods for approaching the problem. Some have provided links to external resources and historical context, while others have posed additional questions about the nature of complex numbers and their geometric interpretations.

Contextual Notes

Participants mention the complexity of the derivation process and the potential for multiple interpretations of the cube roots of complex numbers. There is also a focus on the historical development of concepts related to complex numbers and vectors.

  • #31
There is no complex root. Two roots coincide, x1=x2=-3, x3=6.

ehild
 
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