Choose the One Alternative That Best Completes the Statement or Answers

question 8

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Express the product as a sum containing only sines or cosines.
- $- 2 \sin ( 5 \theta ) \sin \theta$

• A) \(\cos ( 7 \theta ) - \cos ( 3 \theta )\)
• B) \(\cos ( 6 \theta ) + \cos ( 4 \theta )\)
• C) \(\cos ( 7 \theta ) + \cos ( 3 \theta )\)
• D) \(\cos ( 6 \theta ) - \cos ( 4 \theta )\)

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Definitions:

PCM

Powertrain Control Module, an automotive component that integrates the control of the engine's ignition, fuel injection, and transmission systems.

BCM

Body Control Module, an electronic control unit in a vehicle that manages various functions such as interior lighting, door locks, and windows.

Scanning Tool

A device used in automotive diagnostics to read and clear trouble codes, monitor real-time data, and perform system tests.

Hydraulic System

A system using pressurized fluid to transfer force or motion, found in various machinery and vehicle brake systems.