Master Evaluating Tangent using the Sum and Difference Formula

The video tutorial explains how to evaluate the sum and difference formulas for tangent. It begins with an introduction to the tangent formulas, highlighting their differences from sine and cosine formulas. The instructor then demonstrates the sum formula for tangent using specific angle examples, followed by a detailed walkthrough of the difference formula, including calculations and simplifications. The tutorial emphasizes the importance of understanding unit circle coordinates and rationalizing denominators.

What is the significance of using angles like 30 degrees and 45 degrees in tangent formulas?

Describe how to rationalize the denominator in tangent calculations.

How do you apply the tangent formulas to angles expressed in radians?

What steps are involved in evaluating the tangent of 4π/3?