Use the dot product to find the magnitude of u.
$\mathbf { u } = \langle - 7,12 \rangle$
A) $3 \sqrt { 21 }$
B) $\sqrt { 195 }$
C) $\sqrt { 197 }$
D) $\sqrt { 193 }$
E) $\sqrt { 191 }$

Question

Use the dot product to find the magnitude of u.  
  $\mathbf { u } = \langle - 7,12 \rangle$  
A) $3 \sqrt { 21 }$
B) $\sqrt { 195 }$
C) $\sqrt { 197 }$
D) $\sqrt { 193 }$
E) $\sqrt { 191 }$

Quizplus · Accepted Answer

The Answer of Use the dot product to find the magnitude of u.  
  $\mathbf { u } = \langle - 7,12 \rangle$  
A) $3 \sqrt { 21 }$
B) $\sqrt { 195 }$
C) $\sqrt { 197 }$
D) $\sqrt { 193 }$
E) $\sqrt { 191 }$

Use the Dot Product to Find the Magnitude of U u=⟨−7,12⟩\mathbf { u } = \langle - 7,12 \rangleu=⟨−7,12⟩

Use the Dot Product to Find the Magnitude of U $\mathbf { u } = \langle - 7,12 \rangle$