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

Question 64

Multiple Choice

Use the given vectors to find the indicated expression.
- v=3i+5j4k,w=2i+4j2k,u=4i4j3k\mathbf { v } = - 3 \mathbf { i } + 5 \mathbf { j } - 4 \mathbf { k } , \quad \mathbf { w } = 2 \mathbf { i } + 4 \mathbf { j } - 2 \mathbf { k } , \quad \mathbf { u } = - 4 \mathbf { i } - 4 \mathbf { j } - 3 \mathbf { k }
Find v(v×w) \mathbf { v } \cdot ( \mathbf { v } \times \mathbf { w } ) .


A) 90
B) 0
C) 90- 90
D) 130

Correct Answer:

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