Consider v1=(1,0)v_1 = (1, 0)v1=(1,0), v2=(0,1)v_2 = (0, 1)v2=(0,1), and v3=(1,1)v_3 = (1, 1)v3=(1,1). What is the dimension of the span of {v1,v2,v3}\{v_1, v_2, v_3\}{v1,v2,v3}?
222
111
333
000