Use the Dot Product to Find the Magnitude of U $\mathbf { u } = 24 \mathbf { i } - 28 \mathbf { j }$

Multiple Choice

Use the dot product to find the magnitude of u. $\mathbf { u } = 24 \mathbf { i } - 28 \mathbf { j }$

A) $4 \sqrt { 85 }$
B) $\sqrt { 1358 }$
C) $2 \sqrt { 339 }$
D) $\sqrt { 1362 }$
E) $2 \sqrt { 341 }$