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

question 171

Multiple Choice

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

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

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