Express the Sum or Difference as a Product of Sines $\sin ( 7 \theta ) + \sin ( 3 \theta )$

question 168

Multiple Choice

Express the sum or difference as a product of sines and/or cosines.
- $\sin ( 7 \theta ) + \sin ( 3 \theta )$

• A) \(2 \sin ( 5 \theta ) \sin ( 2 \theta )\)
• B) \(2 \cos ( 5 \theta ) \sin ( 2 \theta )\)
• C) \(2 \sin ( 10 \theta )\)
• D) \(2 \sin ( 5 \theta ) \cos ( 2 \theta )\)

---

Definitions:

Crisis

A critical, unstable time or situation in which a decisive change is impending, often marked by a temporary rise in tension and the need for immediate action.

Critical-Thinking Skills

The ability to actively and skillfully conceptualize, apply, analyze, synthesize, and evaluate information to reach an answer or conclusion.

Stroke

A medical condition that occurs when the blood supply to part of the brain is interrupted or reduced, causing brain cells to die.

Reception Area

A space in a building or an office designed to welcome, receive, and wait for visitors or clients.