Let S=span{⟨1,2,1⟩,⟨2,4,2⟩}S = \text{span}\{\langle 1, 2, 1 \rangle, \langle 2, 4, 2 \rangle\}S=span{⟨1,2,1⟩,⟨2,4,2⟩}. Which vector is NOT in SSS?
⟨3,6,3⟩\langle 3, 6, 3 \rangle⟨3,6,3⟩
⟨0,0,0⟩\langle 0, 0, 0 \rangle⟨0,0,0⟩
⟨1,2,0⟩\langle 1, 2, 0 \rangle⟨1,2,0⟩
⟨−1,−2,−1⟩\langle -1, -2, -1 \rangle⟨−1,−2,−1⟩