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Matrices MCQs | Matrices Objective Type Questions & Answers

Questions
21 Horizontally arranged elements in a matrix is called
A columns
B Rows
C determinants
D transpose

Answer: Rows
22 If A is a matrix of order(m - by - n) then a matrix(n - by - m) obtained by interchanging 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

Answer: Transpose of A
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23 If |A| = 0, then A is
A 0
B zero matrix
C singular matrix
D non-singular matrix

Answer: singular matrix
24 Transpose of a rectangular matrix is a
A scaler matrix
B square matrix
C diagonal matrix
D rectangular matrix

Answer: Rectangular matrix
25 If A is a symmetric matrix, then At =
A A
B |A|
C 0
D diagonal matrix

Answer: A
26 A matrix having m rows and n columns with m ≠ n is said to be a
A rectangular matrix
B square matrix
C identity matrix
D scaler matrix

Answer: Rectangular matrix
27 Transpose of a column matrix is
A row matrix
B zero matrix
C column matrix
D diagonal matrix

Answer: Row matrix
28 [ a b c ] is a 1. 2. 3. 4.
A zero matrix
B diagonal matrix
C column matrix
D row matrix

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

Answer: Additive identity matrix
30 Generally elements of a matrix are denoted by
A numbers
B capital letters
C small letters
D both A and C

Answer: Both A and C

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