Find the magnitude of v. $\mathbf { v } = - 3 \mathbf { i } - 2 \mathbf { j } + \mathbf { k }$
A) $\| v \| =$ $3 \sqrt { 2 }$
B) $\| v \| =$ $\sqrt { 2.72 }$
C) $\| v \| =$ $4$
D) $\| v \| =$ $\sqrt { 13 }$
E) $\| v \| =$ $\sqrt { 14 }$

Question

Find the magnitude of v.  $\mathbf { v } = - 3 \mathbf { i } - 2 \mathbf { j } + \mathbf { k }$ 
A) $\| v \| =$ $3 \sqrt { 2 }$
B) $\| v \| =$ $\sqrt { 2.72 }$
C) $\| v \| =$ $4$
D) $\| v \| =$ $\sqrt { 13 }$
E) $\| v \| =$ $\sqrt { 14 }$

Quizplus · Accepted Answer

The magnitude of vector $\mathbf{v} = -3\mathbf{i} - 2\mathbf{j} + \mathbf{k}$ is calculated as $\| v \| = \sqrt{(-3)^2 + (-2)^2 + (1)^2} = \sqrt{9 + 4 + 1} = \sqrt{14}$.

Find the Magnitude of V v=−3i−2j+k\mathbf { v } = - 3 \mathbf { i } - 2 \mathbf { j } + \mathbf { k }v=−3i−2j+k

Find the Magnitude of V $\mathbf { v } = - 3 \mathbf { i } - 2 \mathbf { j } + \mathbf { k }$