Find the rectangular representation of the given polar point. 
Definitions:
Mental Step
A cognitive phase in problem-solving where an individual contemplates various solutions or decisions.
Sales Presentation
A sales pitch or meeting where a product or service is demonstrated to potential buyers.
Office Supply
Products and materials regularly used in offices by businesses and other organizations, including stationery, furniture, and electronic equipment.
Creative Problem Solvers
Individuals who use innovative and imaginative approaches to overcome challenges.
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