Determine whether B is in the column space of A. If it is, write B as a linear combination of the column vectors of A.
?
.
?
A. 
is in the column space of A and 
.
B. 
is in the column space of A and 
.
C. 
is in the column space of A and 
.
D. 
does not belong to the column space of 
.
?
E. none of these choices
Answer: B
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