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Find the Indicated Cross Product v=4i−5j+k,w=2i−2j−k\mathbf { v } = 4 \mathbf { i } - 5 \mathbf { j } + \mathbf { k } , \quad \mathbf { w } = 2 \mathbf { i } - 2 \mathbf { j } - \mathbf { k }

Question 71

Multiple Choice

Find the indicated cross product.
- v=4i−5j+k,w=2i−2j−k\mathbf { v } = 4 \mathbf { i } - 5 \mathbf { j } + \mathbf { k } , \quad \mathbf { w } = 2 \mathbf { i } - 2 \mathbf { j } - \mathbf { k }
Find w×v\mathbf { w } \times \mathbf { v } .


A) 7i+6j+16k7 \mathbf { i } + 6 \mathbf { j } + 16 \mathbf { k }
B) 6i+7j−2k6 \mathbf { i } + 7 \mathbf { j } - 2 \mathbf { k }
C) −7i−6j−2k- 7 \mathbf { i } - 6 \mathbf { j } - 2 \mathbf { k }
D) −2i+7j−7k- 2 \mathbf { i } + 7 \mathbf { j } - 7 \mathbf { k }

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