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Mathematics 10 Online
OpenStudy (anonymous):

Using the theorem given in this lesson, find the angle between the given vectors. u - -<2, 3> and v - <-2, 5> A. 88.3° B. 55.5° C.11° D. 74.92° E. 1.7° F. 62.4° . u - <2, 1> and v - <-1, -3> A. 120° B. 60° C.315° D. 225° E. 135° F. 45°

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