The Easiest Way to Memorize the Trigonometric Unit Circle

This video provides a comprehensive guide to mastering the unit circle, explaining its fundamental properties and how to easily remember sine and cosine values for key angles. Learn to apply this knowledge to evaluate various trigonometric functions across all four quadrants.

• Define the unit circle and relate sine/cosine to X/Y coordinates for quadrantal angles.
• Memorize sine and cosine values for common angles in the first quadrant using a pattern.
• Apply quadrant rules to determine sine and cosine values for angles beyond the first quadrant.
• Use the unit circle to evaluate tangent and cosecant for angles outside 0 to 2pi.