=====Mathematics 250 - Spring 2016=====

==== Homework ====

**Section 7.1**: 1 (except (k) and (l)), 5, 6

Hint for 5 and 6: Look for critical points of $\|(x, y, z)\|^2$, where $(x, y, z)$ is a point on the given surface. Intuitively, why should these functions have  minimum values?