Answer
$\frac{\pi^3}{24}$
Work Step by Step
$\int^{\frac{\pi}{2}}_{0} O^2$
=$\frac{\frac{(\pi}{2})}{3}$
=$\frac{\pi^3}{24}$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.