Find the exact value using difference formula of two angles with sine

The video tutorial covers the use of the unit circle and calculators for finding exact values in trigonometry. It explains the concept of sum and difference angles and how to apply the sine formula for these angles. The tutorial also demonstrates simplifying trigonometric expressions using algebra and addresses common mistakes in calculations. The focus is on understanding the formulas and applying them correctly to find exact values without relying on calculators.

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