Verifying an identify by expanding an expression

The video tutorial discusses the complexity of algebraic problems and the decision-making process in choosing which side of an equation to simplify. The instructor explains the preference for avoiding factoring when possible and demonstrates the use of the FOIL method to simplify expressions. The tutorial also covers the application of trigonometric identities to further simplify algebraic expressions, emphasizing the importance of understanding these identities in solving problems.

Explain the significance of factoring in the context of the problem discussed.

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What is the process described for simplifying the left side of the expression?

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Describe the outcome of foiling the expression mentioned in the text.

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What trigonometric identity is used to simplify the expression after grouping?

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What is the final expression derived from the problem, and what does it represent?

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