Learn How to Take the Inverse of Cosine to Evaluate

The video tutorial begins with a review of a previous problem statement and a recall of Algebra 1 concepts, specifically solving equations using inverse operations. The teacher then transitions to trigonometry, explaining how to solve trigonometric equations by using the inverse cosine function. The tutorial emphasizes understanding the unit circle and finding angles that produce specific cosine values, such as 1/2, using radians.

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