What is ⟨1,0,0⟩⋅⟨0,1,0⟩+⟨0,1,0⟩⋅⟨0,0,1⟩\langle 1, 0, 0 \rangle \cdot \langle 0, 1, 0 \rangle + \langle 0, 1, 0 \rangle \cdot \langle 0, 0, 1 \rangle⟨1,0,0⟩⋅⟨0,1,0⟩+⟨0,1,0⟩⋅⟨0,0,1⟩?
222
111
000
−1-1−1