Simplifying a basic trigonometric expression

The video tutorial explains how to simplify the expression tangent times cotangent. It begins by discussing the goal of simplification, which is to reduce expressions to a single trigonometric term or a number. The tutorial highlights the reciprocal relationship between tangent and cotangent, showing how cotangent can be rewritten as one over tangent. By multiplying tangent by its reciprocal, the expression simplifies to one. The video provides a clear, step-by-step process for achieving this simplification.

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