Find the Exact Function Value $\cos ^ { - 1 } \left( \frac { \sqrt { 2 } } { 2 } \right)$

question 325

Multiple Choice

Find the exact function value.
- $\cos ^ { - 1 } \left( \frac { \sqrt { 2 } } { 2 } \right)$

• A) \(\frac { \pi } { 4 }\)
• B) \(\frac { 11 \pi } { 6 }\)
• C) \(\frac { 7 \pi } { 4 }\)
• D) \(\frac { \pi } { 6 }\)

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Definitions:

Return on Assets

A financial ratio indicating the profitability of a company relative to its total assets, measuring how efficiently assets generate profits.

Fixed Asset Turnover

A financial ratio that measures how efficiently a company uses its fixed assets to generate sales.

Du Pont Identity

A financial formula that breaks down return on equity into three component parts: profit margin, asset turnover, and financial leverage.

Return on Equity

A profitability ratio that highlights the level of profit a company achieves with the capital invested by shareholders.