Find $\mathbf { u} \cdot \mathbf { v }$ And the Angle Between

question 22

Essay

Find $\mathbf { u} \cdot \mathbf { v }$ and the angle between $\mathbf { u }$ and $\mathbf { v }$ for $\mathbf { u } = \langle - 5,3 \rangle , \mathbf { v } = \langle \sqrt { 2 } , 7 \rangle$ .

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