Question

Q.1 Which set is not a vector space?
i.
ii.
The span of the set of rows in A.
The span of the set of columns in A.
The set {x: Ax = 0}.
The set {x: Ax=e, }, where e =(1,0...,0).
iv.

Answer 1

Answer:

The set {x: Ax=e, }, where e =(1,0...,0).

iv.

Answer 2

Answer:

iv) the set (x:Ax=e,),where e= (1,0...,0).

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