What is u⋅v\mathbf{u} \cdot \mathbf{v}u⋅v for u=⟨2,−3,1⟩\mathbf{u} = \langle 2, -3, 1 \rangleu=⟨2,−3,1⟩ and v=⟨4,2,6⟩\mathbf{v} = \langle 4, 2, 6 \ranglev=⟨4,2,6⟩?
888
000
141414
−8-8−8