Find a 3×3 matrix A with the following property: for every 3×3 matrix B, every row of the product AB is equal to the first row of B. How many matrices have this property?
solution:
every matrix of this type has the property that first row of matrix
AB is equal to first row of matrix B. There are infinite number of
matrix of this type since a,b,c,d,e,f can take any real value
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Find a 3×3 matrix A with the following property: for every 3×3 matrix B, every row...
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