The matrix product AB = O, where O represent null matrix, then ______?
- A is null matrix
- A = O or B = O
- A = 0 and B = O
- All of these
Explanation
If AB = O (null matrix), it is possible that either A = O (null matrix) or B = O (null matrix), or both could be null matrices.
In matrix multiplication, if either matrix is a null matrix, the result will always be a null matrix.
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