Question: A micropaleontologist analyzing oxygen isotope ratios in foraminifera uses the function $I(t) = 3\cos\left(\frac\pi t6\right) + 4\sin\left(\frac\pi t6\right)$, where $t$ is time in thousands of years. Find the maximum value of $I(t)$ over all $t \in \mathbbR$. - Nelissen Grade advocaten