how to verify a trigonometric identity with sum formula of two angles

The video tutorial guides students through simplifying a mathematical expression by choosing the appropriate side to simplify first. It involves applying a formula using cosine and sine, with a focus on understanding the unit circle and evaluating trigonometric values. The tutorial concludes with verifying the results, emphasizing the beauty of the mathematical process.

Which side of the equation is chosen for simplification in the video?

• Both sides

• The right side

• The left side

• Neither side

What is the value of cosine of π as discussed in the video?

• 0

• 1

• Undefined

• -1

What is the significance of the unit circle in trigonometric simplification?

• It is used to calculate derivatives

• It is used to solve algebraic equations

• It helps in visualizing angles

• It is irrelevant to trigonometry

What is the result of multiplying zero with any number, as mentioned in the video?

• Infinity

• Negative of the number

• The number itself

• Zero

How does the video describe the final result of the simplification?

• Incorrect

• Confusing

• Incomplete

• Amazing and beautiful