Use the Vectors U and V to Find U × $\mathbf { u } = 7 \mathbf { i } - \mathbf { j } + 8 \mathbf { k } \quad \mathbf { v } = 6 \mathbf { i } + 6 \mathbf { j } - \mathbf { k }$

question 213

Multiple Choice

Use the vectors u and v to find u × (-v) . $\mathbf { u } = 7 \mathbf { i } - \mathbf { j } + 8 \mathbf { k } \quad \mathbf { v } = 6 \mathbf { i } + 6 \mathbf { j } - \mathbf { k }$

• A) \(\mathbf { u } \times ( - \mathbf { v } ) = 47 \mathbf { i } - 55 \mathbf { j } - 48 \mathbf { k }\)
• B) \(\mathbf { u } \times ( - \mathbf { v } ) = 55 \mathbf { i } - 55 \mathbf { j } - 48 \mathbf { k }\)
• C) \(\mathbf { u } \times ( - \mathbf { v } ) = 47 \mathbf { i } + 47 \mathbf { j } - 48 \mathbf { k }\)
• D) \(\mathbf { u } \times ( - \mathbf { v } ) = 55 \mathbf { i } + 47 \mathbf { j } + 48 \mathbf { k }\)
• E) \(\mathbf { u } \times ( - \mathbf { v } ) = 48 \mathbf { i } - 55 \mathbf { j } + 47 \mathbf { k }\)

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Definitions:

Acetyl Salicylic Acid

A chemical compound better known as aspirin, used as an anti-inflammatory, analgesic, and antipyretic.

Buffer

Substance or group of substances that tend to resist pH changes of a solution, thus stabilizing its relative acidity and basicity.

Inorganic

Refers to compounds that generally do not contain carbon-hydrogen bonds, often associated with minerals and non-living matter.

Molecule

The smallest particle in a chemical element or compound that has the chemical properties of that element or compound.