Find the Exact Value of Each Expression, If It Is $\sin ^ { - 1 } ( - 1 )$

question 31

Essay

Find the exact value of each expression, if it is defined. $\sin ^ { - 1 } ( - 1 )$ $\cos ^ { - 1 } ( - \sqrt { 3 } / 2 )$ $\tan ^ { - 1 } ( \sqrt { 3 } / 3 )$

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Definitions:

Dividend Yield

A ratio indicating the annual dividends a firm pays out compared to its stock price.

Return on Equity

A measure of financial performance that calculates the amount of net income returned as a percentage of shareholders' equity.

Net Profit Margin

A financial metric that shows the percentage of profit a company generates from its total revenue, indicating profitability efficiency.

Gross Margin Percentage

A financial ratio that indicates the percentage of revenue that exceeds the cost of goods sold (COGS), a measure of profitability.