For the vector

MATHEMATICS · Multi-part · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

For the vector

\mathbf{v}=2\mathbf{i}-\mathbf{j}+2\mathbf{k}

, find the following: (i) The magnitude

|\mathbf{v}|

. (ii) A unit vector in the direction of

\mathbf{v}