Find the Dot Product Of $\mathbf { u }$ And $\mathbf { v }$

question 9

Multiple Choice

Find the dot product of $\mathbf { u }$ and $\mathbf { v }$ .
$$\mathbf { u } = \langle 1 , - 6 , - 4 \rangle , \mathbf { v } = \langle 6,4,9 \rangle$$

• A) \(- 54\)
• B) 10
• C) \(\langle 6 , - 24 , - 36 \rangle\)
• D) 18
• E) \(\langle 7 , - 2,5 \rangle\)

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