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

question 46

Multiple Choice

Find the angle between the vectors $\mathbf { u }$ and $\mathbf { v }$ .
$\mathbf { u } = \cos \left( \frac { \pi } { 3 } \right) \mathbf { i } + \sin \left( \frac { \pi } { 3 } \right) \mathbf { j } , \quad \mathbf { v } = \cos \left( \frac { 5 \pi } { 4 } \right) \mathbf { i } + \sin \left( \frac { 5 \pi } { 4 } \right) \mathbf { j }$

• A) \(40 ^ { \circ }\)
• B) \(75 ^ { \circ }\)
• C) \(105 ^ { \circ }\)
• D) \(165 ^ { \circ }\)
• E) \(175 ^ { \circ }\)

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Motivating Potential

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