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(Solved): Let \( \vec{u}=\langle 2,-3,-1\rangle \) and \( \vec{v}=\langle-5,1,2\rangle \) Compute the followi ...
Let \( \vec{u}=\langle 2,-3,-1\rangle \) and \( \vec{v}=\langle-5,1,2\rangle \) Compute the following: \[ \begin{array}{l} \vec{u} \cdot \vec{v}= \\ \vec{v} \cdot \vec{u}= \\ \|\vec{u}\|^{2}= \\ -4(\vec{u} \cdot \vec{v})= \\ (-4 \vec{u}) \cdot \vec{v}= \end{array} \]
Expert Answer
In vector algebra, if two vectors are given as: a=[a1,a2,a3,a4,….,an] and b=[b1,b2,b3,b4,….,bn] then their dot product is given by: a? ?b?=a1b1+a2b2+a