Use the Vectors $\mathbf { u } = \langle 2,2 \rangle$

question 140

Multiple Choice

Use the vectors $\mathbf { u } = \langle 2,2 \rangle$ , $\mathbf { v } = \langle - 2,2 \rangle$ to find the indicated quantity.State whether the result is a vector or a scalar. $3 \mathbf { u } \cdot \mathbf { v }$

• A) \(\langle 0,2 \rangle\) ; vector
• B)-2; scalar
• C)2; scalar
• D) \(\langle 4 , - 4 \rangle\) ; vector
• E)0; scalar

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