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Use the Vectors U and V to Find (-2u)× V u=3ij+4kv=2i+2jk\mathbf { u } = 3 \mathbf { i } - \mathbf { j } + 4 \mathbf { k } \quad \mathbf { v } = 2 \mathbf { i } + 2 \mathbf { j } - \mathbf { k }

Question 171

Multiple Choice

Use the vectors u and v to find (-2u) × v. u=3ij+4kv=2i+2jk\mathbf { u } = 3 \mathbf { i } - \mathbf { j } + 4 \mathbf { k } \quad \mathbf { v } = 2 \mathbf { i } + 2 \mathbf { j } - \mathbf { k }


A) (2u) ×v=14i22j16k( - 2 \mathbf { u } ) \times \mathbf { v } = - 14 \mathbf { i } - 22 \mathbf { j } - 16 \mathbf { k }
B) (2u) ×v=16i22j+14k( - 2 \mathbf { u } ) \times \mathbf { v } = - 16 \mathbf { i } - 22 \mathbf { j } + 14 \mathbf { k }
C) (2u) ×v=16i+14j22k( - 2 \mathbf { u } ) \times \mathbf { v } = - 16 \mathbf { i } + 14 \mathbf { j } - 22 \mathbf { k }
D) (2u) ×v=22i+14j16k( - 2 \mathbf { u } ) \times \mathbf { v } = - 22 \mathbf { i } + 14 \mathbf { j } - 16 \mathbf { k }
E) (2u) ×v=14i22j16k( - 2 \mathbf { u } ) \times \mathbf { v } = 14 \mathbf { i } - 22 \mathbf { j } - 16 \mathbf { k }

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