Mathematics, 16.07.2019 01:40 anaalashay

Suppose aequals=qr where r is an invertible matrix. show that a and q have the same column space. [hint: given y in col a, show that yequals=qx for some x. also, given y in col q, show that yequals=ax for some x.] if y is in col a, then which of these is true?

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