Find the Magnitude of V $\mathbf { v } = 4 \mathbf { i } + \mathbf { j } - \mathbf { k }$

Multiple Choice

Find the magnitude of v. $\mathbf { v } = 4 \mathbf { i } + \mathbf { j } - \mathbf { k }$

A) $\| \mathbf { v } \|$ = $\sqrt { 4.72 }$
B) $\| \mathbf { v } \| =$ $\sqrt { 2.72 }$
C) $\| \mathbf { v } \| =$ $\sqrt { 19 }$
D) $\| \mathbf { v } \| =$ $4 \sqrt { 2 }$
E) $\| \mathbf { v } \| =$ $3 \sqrt { 2 }$