3. We will call the oscillation of a function the difference between its maximum and minimum values. What can be the maximum oscillation of the function $f(x) \times g(x)$, if it is known that the interval $[-8,4]$ is the range of the function $f(x)$, and the interval $[-2,6]$ is the range of the function $g(x)$. ANSWER: 72
Solution: The maximum value of $f(x) \times g(x)$ is 24=4x6, minimum $-48=(-8)$ x 6.