Find the direction cosines and angles of u and show that cos 2 + cos 2
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Find the direction cosines and angles of u and show that cos2 α + cos2 β + cos2 ϒ = 1.
u = 7i + j - k
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Related Book For
Calculus Of A Single Variable
ISBN: 9781337275361
11th Edition
Authors: Ron Larson, Bruce H. Edwards
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