Class 9 Math e-Book's MCQs - Complete
Matrices: Addition and Subtraction App Quiz & e-Book Download - 446
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MCQ:
A zero matrix ‘O’ of order m-by-n and A + O = O + A = A, then the matrix is said to be
- additive identity matrix
- null/zero matrix
- symmetric
- skew symmetric
a
Class 9 Math App & e-Book Tests PDF Download
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