Question: A micropaleontologist analyzing oxygen isotope ratios in foraminifera uses the function $I(t) = 3\cos\left(\frac{\pi t}{6}\right) + 4\sin\left(\frac{\pi t}{6}\right)$, where $t$ is time in thousands of years. Find the maximum value of $I(t)$ over all $t \in \mathbb{R}$.

Mon, 04 May 2026 07:43:45 +0000

Content under review