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MCQ: If determinant of a matrix is not equal to zero, then it is said to be

1. non-singular matrix
2. square matrix
3. singular matrix
4. identical matrix

A

MCQ: If determinant of a matrix is equal to zero, then it is said to be

1. square matrix
2. singular matrix
3. non-singular matrix
4. identical matrix

B

MCQ: In matrices (AB)−1 equals to

1. A−1
2. B−1
3. A−1 B−1
4. B−1 A−1

D

MCQ: If ‘a’ is a real number, then a−1 is said to be

1. inverse of a
2. identity of a
3. transpose of a
4. determinant of a

A