The Dot Product
1 Find the Dot Product of Two Vectors
-$\mathbf { u } = - 8 \mathbf { i } + 4 \mathbf { j }$ and $\mathbf { v } = - 14 \mathbf { i } - 5 \mathbf { j }$; Find $\mathbf { u } \cdot \mathbf { v }$.
A) 92
B) 132
C) 112
D) $- 20$

Question

Quizplus · Accepted Answer

The dot product of two vectors $\mathbf{u} = -8\mathbf{i} + 4\mathbf{j}$ and $\mathbf{v} = -14\mathbf{i} - 5\mathbf{j}$ is calculated as $(-8)(-14) + (4)(-5) = 112 + (-20) = 92$.

The Dot Product 1 Find the Dot Product of Two u=−8i+4j\mathbf { u } = - 8 \mathbf { i } + 4 \mathbf { j }u=−8i+4j

The Dot Product
1 Find the Dot Product of Two $\mathbf { u } = - 8 \mathbf { i } + 4 \mathbf { j }$