Compute the dot product u · v.
-$$\mathbf { u } = \left[ \begin{array} { r }
1 \
17
\end{array} \right] , \mathbf { v } = \left[ \begin{array} { l }
3 \
1
\end{array} \right]$$
A) 20
B) 22
C) 14
D) 53

Question

Compute the dot product u · v.
-$$\mathbf { u } = \left[ \begin{array} { r } 
1 \
17
\end{array} \right] , \mathbf { v } = \left[ \begin{array} { l } 
3 \
1
\end{array} \right]$$
A) 20
B) 22
C) 14
D) 53

Quizplus · Accepted Answer

The dot product $ \mathbf{u} \cdot \mathbf{v} $ is computed as $ (1)(3) + (17)(1) = 3 + 17 = 20 $.

Compute the Dot Product U · V u=[117],v=[31]\mathbf { u } = \left[ \begin{array} { r } 1 \\17\end{array} \right] , \mathbf { v } = \left[ \begin{array} { l } 3 \\1\end{array} \right]u=[117​],v=[31​]

Compute the Dot Product U · V $\mathbf { u } = \left[ \begin{array} { r } 1 \\17\end{array} \right] , \mathbf { v } = \left[ \begin{array} { l } 3 \\1\end{array} \right]$