the least-squares solution of a x = b is the vector in the column space of a closest to b. then the statement is true
Aleast- squares solution of is a vector such that for all in .
The statement is true because the general least-squares problem attempts to find an that maximizes .
The above statement is actually the one that validates the least-square solution statement.
Hence , the least-squares solution of a x = b is the vector in the column space of a closest to b .then the statement is true
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