Use spherical coordinates to describe the following set given in rectangular coordinates: 
.
Definitions:
Niche Websites
Online platforms focusing on specific interests, topics, or audiences, catering to particular segments rather than a general audience.
Big Job Boards
Online platforms that list a large volume of employment opportunities from various employers, serving as a resource for job seekers.
Unethical Résumé
A curriculum vitae containing false or embellished information with the intention to deceive potential employers.
Professional References
Individuals who can vouch for your abilities, accomplishments, and work ethic, typically required during job applications.
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