Which of these vectors is linearly dependent on u=⟨1,2⟩\mathbf{u} = \langle 1, 2 \rangleu=⟨1,2⟩?
⟨2,4⟩\langle 2, 4 \rangle⟨2,4⟩
⟨−1,−2⟩\langle -1, -2 \rangle⟨−1,−2⟩
⟨2,1⟩\langle 2, 1 \rangle⟨2,1⟩
⟨0,0⟩\langle 0, 0 \rangle⟨0,0⟩