Chapter 7.1, Problem 12PE

(a)

To determine

Whether the major axis of the ellipse $\frac{x^2}{11}+\frac{y^2}{10}=1$ is horizontal or vertical.

(b)

To determine

Whether the major axis of the ellipse $\frac{x^2}{10}+\frac{y^2}{11}=1$ is horizontal or vertical.