Let v and w be vectors in the plane. (a) Use Theorem 2 to explain why the
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Let v and w be vectors in the plane.
(a) Use Theorem 2 to explain why the dot product v · w does not change if both v and w are rotated by the same angle θ.
Transcribed Image Text:
THEOREM 2 Dot Product and the Angle Let 9 be the angle between two nonzero vectors v and w. Then vw |v||||w|| cos 6 or cos V. W ||v||||w||
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