Learn how to evaluate the sum of two angles with tangent

The video tutorial covers sum and difference identities, focusing on tangent. It explains how to evaluate tangent using the unit circle and highlights common mistakes. The instructor demonstrates simplifying expressions with radicals and fractions, emphasizing the importance of careful calculation. The session concludes with a Q&A segment addressing student queries.

What mistakes do students commonly make when working with tangent and the unit circle?

How can you ensure accuracy when evaluating trigonometric functions involving angles?

Describe how to rationalize the denominator in the expression derived from tangent.