Find the Angle Between the Vectors U and V $\mathbf { u } = \cos \left( \frac { \pi } { 3 } \right) \mathbf { i } + \sin \left( \frac { \pi } { 3 } \right) \mathbf { j }$

question 2

Multiple Choice

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

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

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