Finding the Direction Angle of a VectorIn Exercises 61–64, find the magnitude anddirection angle of the vector v.61. v = 6i − 6j62. v = −5i + 4j63. v = 3(cos 60°i + sin 60°j)64. v = 8(cos 135°i + sin 135°j)

Trigonometry (MindTap Course List)
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Chapter3: Additional Topics In Trigonometry
Section: Chapter Questions
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Finding the Direction Angle of a Vector
In Exercises 61–64, find the magnitude and
direction angle of the vector v.
61. v = 6i − 6j
62. v = −5i + 4j
63. v = 3(cos 60°i + sin 60°j)
64. v = 8(cos 135°i + sin 135°j)

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