Chapter 1 – Matrices And Determinants Multiple Questions and Answers.




41. A zero matrix ‘O’ of order m-by-n and A + O = O + A = A, then the matrix is said to be
A. additive identity matrix
B. null/zero matrix
C. symmetric
D. skew symmetric

42. In real numbers, the additive identity is
A. 1
B. 3
C. 0
D. −1

43. In matrices, the columns are denoted by
A. A
B. B
C. R
D. C

44. If A is a matrix of order(m - by - n) then a matrix(n - by - m) obtained by interchanging the rows and columns of A is called the
A. additive inverse of A
B. transpose of A
C. determinant of A
D. order of A

45.If At = −A then A is said to be
A. square matrix
B. skew symmetric
C. transpose
D. symmetric

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