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Use the Given Vectors to Find the Indicated Expression Find w(v×u)\mathbf { w } \cdot ( \mathbf { v } \times \mathbf { u } )

Question 131

Multiple Choice

Use the given vectors to find the indicated expression.
- v=4i3j+2k,w=5i5j+4k,u=4i+4j4k\mathbf { v } = - 4 \mathbf { i } - 3 \mathbf { j } + 2 \mathbf { k } , \quad \mathbf { w } = - 5 \mathbf { i } - 5 \mathbf { j } + 4 \mathbf { k } , \quad \mathbf { u } = 4 \mathbf { i } + 4 \mathbf { j } - 4 \mathbf { k }
Find w(v×u) \mathbf { w } \cdot ( \mathbf { v } \times \mathbf { u } ) .


A) 148
B) 4
C) 172
D) 0

Correct Answer:

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