Let u⃗=⟨1,−1,1,−2⟩\displaystyle \vec{{{u}}}={\left\langle{1},-{1},{1},-{2}\right\rangle}, v⃗=⟨−4,−3,2,−2⟩\displaystyle \vec{{{v}}}={\left\langle-{4},-{3},{2},-{2}\right\rangle}.

Then u⃗⋅v⃗=\displaystyle \vec{{{u}}}\cdot\vec{{{v}}}=

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