Learn how to solve a trigonometric equation with sum and difference formulas

The video tutorial explains how to apply the sum and difference formulas in trigonometry, focusing on sine and cosine functions. It demonstrates the use of brackets to ensure correct subtraction and the application of the distributive property. The tutorial also covers solving trigonometric equations where cosine of x equals 1/2, identifying the angles that satisfy this condition. Clarifications are provided on the simplification of terms involving sine and cosine.

Why is the sine of π/6 equal to 1/2, and how does it affect the equation?

What are the angles between 0 and 2π for which cosine of x equals 1/2?