Answer to Question #144503 in Analytic Geometry for Hussaina

Question

Find the magnitude of this vector \\(a= -i+2j +2k\\)

Answer 1

$$\vec{a}=-\vec{i}+2\vec{j}+2\vec{k}$$

$$|\vec{a}|=\sqrt{(-1)^2+(2)^2+(2)^2}=3$$

The magnitude of this vector $\vec{a}$ is $|\vec{a}|=3.$