Use the Vectors $\mathbf { u } = \langle 4,5 \rangle$

question 120

Multiple Choice

Use the vectors $\mathbf { u } = \langle 4,5 \rangle$ , $\mathbf { v } = \langle - 6,5 \rangle$ , and $\mathbf { w } = \langle 6 , - 4 \rangle$ to find the indicated quantity.State whether the result is a vector or a scalar.
$\langle \mathbf { u } \cdot \mathbf { v } \rangle - \langle \mathbf { u } \cdot \mathbf { w } \rangle$

• A)-1; scalar
• B) \(\langle 1 , - 7 \rangle\) ; vector
• C) \(\langle - 3 , - 3 \rangle\) ; vector
• D)-3; scalar
• E)-5; scalar

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