MHB Graph |z| > 3 on the Complex Plane: A Detailed Explanation

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SUMMARY

The discussion focuses on graphing the inequality |z| > 3 on the complex plane. Participants clarify that |z| represents the distance from the origin, indicating that the graph should depict all points outside a circle with a radius of 3. Dan suggests drawing the circle for |z| = 3 and shading the area outside to visually represent the solution. This method effectively illustrates the concept of values for z that satisfy the inequality.

PREREQUISITES
  • Understanding of complex numbers and their representation on the complex plane
  • Familiarity with the concept of absolute value in the context of complex numbers
  • Basic knowledge of graphing techniques for inequalities
  • Ability to interpret geometric shapes and regions in a coordinate system
NEXT STEPS
  • Learn how to graph complex inequalities, specifically |z| < r and |z| > r
  • Explore the properties of circles in the complex plane and their equations
  • Study shading techniques for representing inequalities on graphs
  • Investigate the implications of complex number magnitudes in mathematical analysis
USEFUL FOR

Students studying complex analysis, educators teaching graphing techniques, and anyone interested in visualizing inequalities in the complex plane.

Raerin
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I have no idea where to post this.

How to graph |z| > 3 on the complex plane? A detailed explanation of how the graph shall look like would be very nice :D

Thanks!
 
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Hello,
|z| means length of z from origin, so the length of the circle is greater Then 3
Regards,
$$|\pi\rangle$$
 
I understand that, but I have no idea how the graph should look like. I don't know how to draw it to illustrate that the radius is greater than 3.
 
Raerin said:
I understand that, but I have no idea how the graph should look like. I don't know how to draw it to illustrate that the radius is greater than 3.
I think the simplest way to graph this is to draw the circle |z| = 3, then shade the outside of the circle. It's not perfect, but it gets the idea across.

-Dan
 

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