Find the Angle Between the Vectors $\mathbf { u }$ And $\mathbf { v }$

question 33

Multiple Choice

Find the angle between the vectors $\mathbf { u }$ and $\mathbf { v }$ . Express your answer in degrees and round to the nearest tenth of a degree.
$$\mathbf { u } = 6 \mathbf { i } - 3 \mathbf { j } - 9 \mathbf { k } , \mathbf { v } = - \mathbf { i } - \mathbf { j } - 6 \mathbf { k }$$

• A) \(36.4 ^ { \circ }\)
• B) \(47.5 ^ { \circ }\)
• C) \(53.6 ^ { \circ }\)
• D) \(90 ^ { \circ }\)
• E) \(42.5 ^ { \circ }\)

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