Question

Let a1 = [ 7 2 -1 ] a2 =[ -1 2 3 ] a3= [...

Let a1 = [

7
2
-1

]

a2 =[

-1
2
3

]

a3= [

6
4
9

]

a.)determine whether a1 a2 and a3span R3

b.) is a3 in the Span {a1, a2}?

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