## Matrices and Determinants 1

Multiple Choice Questions about Matrices and Determinant from First Year Mathematics Book for the preparation of Examination and learning matrices in a quicker way.

1. For the square matrix $A=[a_{ij}]$, if all $a_{ij}=0, i\ne j$ and at least one $a_{ii}\ne 0, i=j$, then $A$ matrix is called

2. If a matrix $A$ has $m$ rows and $n$ column, then order of $A$ is

3. The horizontal lines of numbers in a matrix are called

4. If any Matrix $A$ has different numbers of rows and columns, then matrix $A$ is

5. If matrix $A$ is of order $m\times n$, then the matrix of order $n\times m$ is called

6. The matrix $[6]$ is

7. The element $a_{ij}$ of any matrix $A$ is present in

8. Any matrix of order $1\times n$ is called

9. For the square matrix $A=[a_{ij}]_{n\times n}$, the elements $a_{11}, a_{22}, \cdots, \_{nn}$ are

10. If any matrix $A$ has only one column, then it is called

11. If all off-diagonal elements are zeros and at least one of the leading diagonals is non-zero, then the matrix is called

12. Two matrices $A$ and $B$ are said to be conformable for addition if

13. If any matrix $A$ has only one row, then it is called

14. Any matrix of order $m\times 1$ is called

15. A rectangular array of numbers enclosed by a pair of brackets is called a

16. The verticle lines of numbers in a matrix are called

17. If a matrix $A$ has the same number of rows and columns, then Matrix $A$ is called

18. For the square matrix $A=[a_{ij}]$, if all $a_{ij}=0, i\ne j$ and all $a_{ij}=k$ (non-zero) for $i=j$, then matrix $A$ is called

19. Any matrix $A$ is called real if all $a_{ij}$ are

20. For the matrix $A=[a_{ij}]_{n\times n}$, the elements $a_{1n}, a_{2n-1}, a_{3n-2}, a_{4n-3}, \cdots, a_{n1}$ form

A matrix is a rectangular array of numbers arranged in a sequence and enclosed in brackets. A matrix is a rectangular array of mathematical elements arranged into rows and columns according to algebraic rules.

A pair of parentheses $\begin{pmatrix}a&b\\c&d\end{pmatrix}$or a square bracket $\begin{bmatrix}a&b\\c&d\end{bmatrix}$ is used to write matrices (plural of matrix). A matrix is usually denoted by capital letters such as $A, B, C,$ and $X, Y,$ and $Z$. The matrices are used to solve the simultaneous equations.

The horizontal lines of elements of a matrix are called rows of the matrix. The vertical lines of elements of a matrix are called the columns of a matrix. The number of rows and columns of a matrix is called the order of the matrix.

### Online MCQs Matrices and Determinants

• A rectangular array of numbers enclosed by a pair of brackets is called a
• The horizontal lines of numbers in a matrix are called
• The verticle lines of numbers in a matrix are called
• If a matrix $A$ has $m$ rows and $n$ column, then order of $A$ is
• The element $a_{ij}$ of any matrix $A$ is present in
• Any matrix $A$ is called real if all $a_{ij}$ are
• If any matrix $A$ has only one row, then it is called
• If any matrix $A$ has only one column, then it is called
• If a matrix $A$ has the same number of rows and columns, then Matrix $A$ is called
• If any Matrix $A$ has different numbers of rows and columns, then matrix $A$ is
• Any matrix of order $m\times 1$ is called
• Any matrix of order $1\times n$ is called
• For the square matrix $A=[a_{ij}]{n\times n}$, the elements $a{11}, a_{22}, \cdots, _{nn}$ are
• For the matrix $A=[a_{ij}]{n\times n}$, the elements $a{1n}, a_{2n-1}, a_{3n-2}, a_{4n-3}, \cdots, a_{n1}$ form
• For the square matrix $A=[a_{ij}]$, if all $a_{ij}=0, i\ne j$ and at least one $a_{ii}\ne 0, i=j$, then $A$ matrix is called
• For the square matrix $A=[a_{ij}]$, if all $a_{ij}=0, i\ne j$ and all $a_{ij}=k$ (non-zero) for $i=j$, then matrix $A$ is called
• If all off-diagonal elements are zeros and at least one of the leading diagonals is non-zero, then the matrix is called
• The matrix $[6]$ is
• If matrix $A$ is of order $m\times n$, then the matrix of order $n\times m$ is called
• Two matrices $A$ and $B$ are said to be conformable for addition if

Try another Test about Random Variables