Factor;then Use Fundamental Identities to Simplify the Expression Below and Determine

question 15

Multiple Choice

Factor;then use fundamental identities to simplify the expression below and determine which of the following is not equivalent. ​​ $$\cot ^ { 2 } \alpha + \cot ^ { 2 } \alpha \cdot \tan ^ { 2 } \alpha$$

• A)​ \(\csc ^ { 2 } \alpha\)
• B)​ \(1 + \cot ^ { 2 } \alpha\)
• C)​ \(\sec ^ { 2 } \alpha\)
• D)​ \(1 / \cos ^ { 2 } \left( \frac { \pi } { 2 } - \alpha \right)\)
• E)​ \(\frac { 1 } { 1 - \cos ^ { 2 } \alpha }\)

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Definitions:

Budget Variance

Budget variance is the difference between budgeted or planned financial performance and the actual performance, indicating whether a business is over or under its budgeted amount.

Budgeted Overhead

An estimated cost for indirect expenses related to operations that a company or project is expected to incur over a specific period.

Variable Overhead

Costs that vary with production volume, including such expenses as indirect materials, supplies, and utilities for the production process.

Efficiency Variance

A measure in cost accounting used to assess the difference between the actual input used in production and the standard input expected to be used, for cost control purposes.