Verify That the Equation Is an Identity $\mathrm { V } = 164 \cos \left( 2 \pi \mathrm { ft } - \frac { \pi } { 6 } \right)$

question 445

Multiple Choice

Verify that the equation is an identity.
-The output voltage of a generator is given by $\mathrm { V } = 164 \cos \left( 2 \pi \mathrm { ft } - \frac { \pi } { 6 } \right)$ . Express the voltage as the sum of a sine and a cosine function.

• A) \(V = 82 \sqrt { 3 } \cos 2 \pi f t - 82 \sin 2 \pi f t\)
• B) \(\mathrm { V } = 82 \cos 2 \pi \mathrm { ft } + 82 \sin 2 \pi \mathrm { ft }\)
• C) \(\mathrm { V } = 82 \sqrt { 3 } \sin 2 \pi \mathrm { ft } + 82 \cos 2 \pi \mathrm { ft }\)
• D) \(V = 82 \sqrt { 3 } \cos 2 \pi f t + 82 \sin 2 \pi f t\)

Recognize the role and calculation of contribution margin in decision making.

Identify the importance of determining cost objects in the costing process.

Grasp the significance and method of estimating the denominator volume for overhead rate computation.

Understand the difference between direct and indirect costs in cost allocation.

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Definitions:

Creativity

The ability to produce original and valuable ideas or things.

Achieved Identity

A sense of self that has been developed through personal effort, experiences, and achievements rather than being born into.

Identity Achievement

Marcia’s term for the status of individuals who have undergone a crisis and made a commitment.

Moratorium

In developmental psychology, refers to a period of time when an individual delays making decisions or engaging in certain responsibilities, often to explore various identities and alternatives.