Find All Solutions of the Following Equation in the Interval $\pi$

question 71

Multiple Choice

Find all solutions of the following equation in the interval [0, 2 $\pi$ ) .
$5 \sec ^ { 2 } x - 5 = 0$

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Definitions:

Variable Overhead Efficiency Variance

A calculation used to measure the efficiency with which a firm uses its variable overhead resources, based on the difference between actual and expected usage.

Unfavorable

A term describing outcomes that are worse than expected or budgeted, often used in financial and operational analysis.

Favorable

A term used in financial analysis to indicate that actual performance is better than expected or budgeted performance.

Overapplied

A situation where the overhead applied to products is greater than the actual overhead incurred.