Convert the Expression $\cos 4 \alpha$ A) $\cos ^ { 2 } 2 \alpha - \sin ^ { 2 } 2 \alpha$

question 5

Multiple Choice

Convert the expression. $\cos 4 \alpha$

• A) \(\cos ^ { 2 } 2 \alpha - \sin ^ { 2 } 2 \alpha\)
• B) \(\cos ^ { 2 } 2 \alpha + \sin ^ { 2 } 2 \alpha\)
• C) \(\cos ^ { 4 } 2 \alpha + \sin ^ { 4 } 2 \alpha\)
• D) \(\cos ^ { 4 } 2 \alpha - \sin ^ { 4 } 2 \alpha\)
• E) \(\cos ^ { 4 } 2 \alpha - \sin ^ { 2 } 2 \alpha\)

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Definitions:

Overloading

The situation wherein a system or individual is given more work or responsibility than they can manage.

Underutilizing

Not making the most effective or efficient use of resources, employees, or capabilities.

Time Management

The process of organizing and planning how to divide one’s time between specific activities efficiently and effectively.

Communication

The giving and receiving of ideas, feelings, and information among people.