Question: If A has columns a1, a2, a3 and B = I is the identity matrix, what are the rank one matrices a1b1* and a2b2*; and

If A has columns a1, a2, a3 and B = I is the identity matrix, what are the rank one

matrices a1b1* and a2b2*; and a3b3*? They should add to AI= A.

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