Use the Sum-To-Product Formulas to Rewrite the Sum or Difference $$\cos 12 \theta + \cos 8 \theta$$

question 31

Multiple Choice

Use the sum-to-product formulas to rewrite the sum or difference as a product.​ $$\cos 12 \theta + \cos 8 \theta$$ ​

• A)​ \(2 \sin 10 \theta \cos 2 \theta\)
• B)​ \(2 \cos 10 \theta \sin 2 \theta\)
• C)​ \(2 \sin 12 \theta \cos 8 \theta\)
• D)​ \(2 \cos 10 \theta \cos 2 \theta\)
• E)​ \(2 \sin 10 \theta \sin 2 \theta\)

---

Definitions:

Step-By-Step Description

A detailed explanation or instruction given in a logical sequence, breaking down a process into individual steps.

Trainee

An individual undergoing training in a particular field or job, often to gain necessary skills and knowledge.

Fear Messages

Communication strategies that use the threat of negative consequences to influence individuals' attitudes or behaviors.

Parent-Teacher Conference

A meeting between the parents or guardians of a student and their teacher(s) to discuss the student's progress, behavior, and concerns.