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Evaluate the Expression r=⟨9,−9,−4⟩,v=⟨6,−9,−6⟩,w=⟨6,−1,−3⟩r = \langle 9 , - 9 , - 4 \rangle , \mathbf { v } = \langle 6 , - 9 , - 6 \rangle , \mathbf { w } = \langle 6 , - 1 , - 3 \rangle

Question 113

Multiple Choice

Evaluate the expression.
- r=⟨9,−9,−4⟩,v=⟨6,−9,−6⟩,w=⟨6,−1,−3⟩r = \langle 9 , - 9 , - 4 \rangle , \mathbf { v } = \langle 6 , - 9 , - 6 \rangle , \mathbf { w } = \langle 6 , - 1 , - 3 \rangle
(r+v) ⋅w( \mathbf { r } + \mathbf { v } ) \cdot \mathbf { w }


A) 138
B) ⟨−90,−18,−30⟩\langle - 90 , - 18 , - 30 \rangle
C) ⟨−54,−81,−24⟩\langle - 54 , - 81 , - 24 \rangle
D) −138- 138

Correct Answer:

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