Solve the Following Equation $\cos ^ { 2 } x + \cos x = 0$

question 217

Multiple Choice

Solve the following equation. $\cos ^ { 2 } x + \cos x = 0$

• A) \(x = \frac { 3 \pi } { 4 } + n \pi \text { and } x = \frac { 5 \pi } { 4 } + n \pi\) , where n is an integer
• B) \(x = \pi + 2 n \pi \text { and } x = \frac { \pi } { 2 } + n \pi\) , where n is an integer
• C) \(x = \frac { 3 \pi } { 4 } + 2 n \pi \text { and } x = \frac { 5 \pi } { 4 } + 2 n \pi\) , where n is an integer
• D) \(x = n \pi \text { and } x = \frac { 3 \pi } { 2 } + n \pi\) , where n is an integer
• E) \(x = \pi + n \pi \text { and } x = \frac { \pi } { 2 } + 2 n \pi\) , where n is an integer

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Contribution Margin

The amount by which the sale of products or services exceeds variable costs, contributing to the coverage of fixed costs and profit generation.

Machine Hour

A unit of measure representing an hour of operation of a machine, used in calculating the cost of running machinery for manufacturing.

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A financial metric that measures the amount of net income earned with each dollar of sales.

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The amount of money a buyer pays to purchase a product or service.