Given $\mathbf { u } = - \mathbf { i } + 3 \mathbf { j }$ and $\mathbf { v } = 5 \mathbf { i } + 4 \mathbf { j }$ , find $\text { u v }$
A)7
B)-5
C)-17
D)11
E)-19

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The Answer of Given $\mathbf { u } = - \mathbf { i } + 3 \mathbf { j }$ and $\mathbf { v } = 5 \mathbf { i } + 4 \mathbf { j }$ , find $\text { u v }$
A)7
B)-5
C)-17
D)11
E)-19

Given u=−i+3j\mathbf { u } = - \mathbf { i } + 3 \mathbf { j }u=−i+3j

Given $\mathbf { u } = - \mathbf { i } + 3 \mathbf { j }$