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Let v1=(0,1,2,3),v2=(1,0,-1,0),v3=(0,4,-1,2), and v4=(0,5,1,5). Let S=(v1,v2,v3,v4) (1)find a basis for span(S) (2)is the vector e1=(1,0,0,0) in...

Let v1=(0,1,2,3),v2=(1,0,-1,0),v3=(0,4,-1,2), and v4=(0,5,1,5). Let S=(v1,v2,v3,v4)

(1)find a basis for span(S)

(2)is the vector e1=(1,0,0,0) in the span of S? Why?

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