Vector calculus in plane and space: Distances, Angles and Inner Product
Dot product
The vector #\vec{u}# has a length of #1# and #\vec{v}# has a length of #9#. The angle between the two vectors is equal to #225^{\circ}#.
What is the dot product #\vec{u}\cdot \vec{v}#?
What is the dot product #\vec{u}\cdot \vec{v}#?
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