Math tutorial simplifying trigonometric expressions - learn math

The video tutorial explains how to simplify a trigonometric expression involving cosine and tangent. It begins by introducing the expression and then uses trigonometric identities to transform and simplify it. The process involves rewriting the expression using secant and cosine identities, leading to a simplified form. The tutorial emphasizes the use of trigonometric identities and simplification techniques to achieve the final result.

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