How to convert a polar point into rectangular coordinate

The video tutorial explains polar coordinates, focusing on the radius and angle (theta). It demonstrates how to convert polar coordinates to rectangular coordinates (X and Y) using both graphical methods and mathematical formulas. The unit circle is introduced as a tool for understanding angles and coordinates. The tutorial provides a step-by-step example of using formulas to convert polar coordinates to rectangular coordinates, emphasizing the use of cosine and sine functions.

What formulas are used to convert polar coordinates to rectangular coordinates?

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What is the final X and Y coordinate when converting a polar coordinate with a radius of 3 and an angle of π/2?

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