Write the Expression in Terms of Sine and Cosine, and Simplify

question 109

Multiple Choice

Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.
- $$\frac { \sin ^ { 2 } x - 1 } { \cos ( - x ) }$$

• A) \(- \cos x\)
• B) \(\cos x\)
• C) \(\sin x\)
• D) \(- \sin x\)

---

Definitions:

Behaviour And Reaction Metrics

Tools or indicators used to measure individuals' actions or emotional responses in specific situations, often utilized in performance evaluation or market research.

Self-Efficacy

Someone's conviction in their competence to finish assignments and attain aims.

Newly Learned Skills

Abilities or knowledge acquired through recent training or education.

Rigorous Evaluation Techniques

Methods and procedures applied in research or assessment to thoroughly and accurately measure and analyze data or outcomes.