Section 12.1: Three dimenstional Coordinate Geometry
Exercise 35
Describe in words the region of \(\mathbb{R}^3\) represented by the inequality \(1 \le x^2 + y^2 + z^2 \le 5\).
Describe in words the region of \(\mathbb{R}^3\) represented by the inequality \(1 \le x^2 + y^2 + z^2 \le 5\).