Types of Matrices

Download Q&A
Q. If A is a 2x2 matrix and B is a 2x2 matrix, what is the order of the product AB? (2019)
  • A. 2x2
  • B. 2x3
  • C. 3x2
  • D. 3x3
Q. If A is a 2x2 matrix and B is a 2x3 matrix, what is the order of the product AB? (2019)
  • A. 2x2
  • B. 2x3
  • C. 3x2
  • D. 2x5
Q. If A is a 3x3 matrix and B is a 3x3 matrix, what is the maximum number of non-zero elements in A + B? (2021)
  • A. 9
  • B. 6
  • C. 3
  • D. 0
Q. If A is a 3x3 matrix and B is a 3x3 matrix, what is the maximum order of the resultant matrix when A is added to B? (2021)
  • A. 3x3
  • B. 3x2
  • C. 2x3
  • D. 3x1
Q. If A is a 3x3 matrix and B is a 3x3 matrix, what is the maximum order of the resultant matrix when A is multiplied by B? (2022)
  • A. 3x3
  • B. 6x6
  • C. 9x9
  • D. 3x6
Q. If A is a 3x3 matrix and B is a 3x3 matrix, what is the maximum order of the resultant matrix AB? (2023)
  • A. 3x3
  • B. 2x2
  • C. 3x2
  • D. 2x3
Q. If A is a 3x3 matrix and B is a 3x3 matrix, what is the order of A + B? (2023)
  • A. 3x3
  • B. 3x2
  • C. 2x3
  • D. 3x1
Q. If A is a 3x3 matrix and B is a 3x3 matrix, what is the order of the matrix A + B? (2019)
  • A. 3x3
  • B. 3x2
  • C. 2x3
  • D. 3x1
Q. If A is a 3x3 matrix and B is a 3x3 matrix, what is the order of the matrix product AB? (2021)
  • A. 3x3
  • B. 2x2
  • C. 3x2
  • D. 2x3
Q. If A is a 3x3 matrix, how many elements does it have? (2023)
  • A. 6
  • B. 9
  • C. 12
  • D. 3
Q. If A is a 3x3 matrix, what is the maximum number of linearly independent rows it can have? (2023)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. If a matrix has more columns than rows, it is called a: (2022)
  • A. Row matrix
  • B. Column matrix
  • C. Rectangular matrix
  • D. Square matrix
Q. If a matrix is both upper triangular and lower triangular, what type of matrix is it? (2020)
  • A. Zero matrix
  • B. Identity matrix
  • C. Diagonal matrix
  • D. Square matrix
Q. If a matrix is diagonal, what can be said about its non-diagonal elements? (2020)
  • A. They are all zero
  • B. They are all one
  • C. They can be any value
  • D. They are negative
Q. If a matrix is diagonal, which of the following must be true? (2020)
  • A. All elements are zero
  • B. Only diagonal elements are non-zero
  • C. All elements are equal
  • D. It is a square matrix
Q. If a matrix is said to be orthogonal, what property does it have?
  • A. All elements are zero
  • B. Transpose is equal to its inverse
  • C. All diagonal elements are equal
  • D. It is a square matrix
Q. If a matrix is said to be skew-symmetric, what must be true about its elements? (2023)
  • A. All elements are zero
  • B. a_ij = -a_ji
  • C. a_ij = a_ji
  • D. All diagonal elements are zero
Q. If a matrix is symmetric, what can be said about its elements? (2021)
  • A. Aij = Aji
  • B. Aij = -Aji
  • C. Aij = 0
  • D. Aij = Aii
Q. If a matrix is symmetric, what property does it have?
  • A. A = A^T
  • B. A = -A
  • C. A^2 = I
  • D. A = 0
Q. If a matrix is symmetric, which of the following must be true? (2021)
  • A. A = A^T
  • B. A = -A^T
  • C. A^2 = I
  • D. A^T = 0
Q. What is the determinant of a 1x1 matrix [[5]]? (2021)
  • A. 0
  • B. 5
  • C. 10
  • D. 1
Q. What is the determinant of a 2x2 matrix A = [[a, b], [c, d]]? (2021)
  • A. ad - bc
  • B. ab + cd
  • C. ac + bd
  • D. ad + bc
Q. What is the determinant of a 2x2 matrix [[a, b], [c, d]]? (2020)
  • A. ad - bc
  • B. ab + cd
  • C. ac - bd
  • D. bc - ad
Q. What is the order of a matrix with 3 rows and 4 columns? (2021)
  • A. 3x4
  • B. 4x3
  • C. 3x3
  • D. 4x4
Q. What is the trace of a 2x2 matrix A = [[3, 2], [1, 4]]? (2022)
  • A. 5
  • B. 6
  • C. 7
  • D. 8
Q. What is the trace of a 2x2 matrix A = [[a, b], [c, d]]? (2022)
  • A. a + b + c + d
  • B. a + d
  • C. b + c
  • D. a * d
Q. What is the trace of a 2x2 matrix [[a, b], [c, d]]? (2019)
  • A. a + b
  • B. b + c
  • C. a + d
  • D. c + d
Q. What is the trace of a matrix?
  • A. Sum of all elements
  • B. Sum of diagonal elements
  • C. Product of diagonal elements
  • D. None of the above
Q. What is the trace of a square matrix? (2022)
  • A. Sum of all elements
  • B. Product of diagonal elements
  • C. Sum of diagonal elements
  • D. Difference of diagonal elements
Q. What type of matrix has all its diagonal elements as 1 and all other elements as 0? (2023)
  • A. Identity matrix
  • B. Zero matrix
  • C. Diagonal matrix
  • D. Scalar matrix
Showing 1 to 30 of 45 (2 Pages)
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely