Using half angles to solve trigonometric equations

The video tutorial covers solving trigonometric equations by isolating variables and using inverse operations or factoring. It explains how to apply trigonometric identities to simplify equations and solve them. The instructor demonstrates solving a quadratic trigonometric equation by factoring and using the unit circle to find solutions. Key concepts include inverse operations, trigonometric identities, and the zero product property.

What steps are taken to eliminate the square root in the equation discussed?

Describe the process of factoring the equation to find the solutions.

What are the solutions for cosine of X equals -1/2 as derived from the unit circle?