9.4 Vectors in 3D
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Last updated 4:51 PM on 8/4/22
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5 Terms
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(x 5), J
a
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Components
In
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Orthogonal
If the dot product of two vectors is 0, then they are _______
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Direction angles
The ______ of a nonzero vector are the angles alpha, beta, and gamma in the nterval [0,pi] that the vector v makes with the positive x-, y-, and z-axes
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Direction cosines
The cosines of these angles are called the ______ of vector v