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Find the direction cosines and angles (in radians) of u and show that cos?(a) + cos2(B) + cos2(y) = 1. (Round your answers for the

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Find the direction cosines and angles (in radians) of u and show that cos?(a) + cos2(B) + cos2(y) = 1. (Round your answers for the angles to four decimal places.) = -2i + 3j + 5k cos(a) = V 38 a ~ rad cos(B) = 38 B 2 rad cos(y) = V 38 rad

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