English Prepositions 2

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. If $A$ is of order $2\times 4$ and $B$ of order $4\times 2$ then order of $AB$

 
 
 
 

2. If $AX=B$ then $X$ is equal to

 
 
 
 

3. For any square matrix $A=\begin{bmatrix} a & b \\ c & d \end{bmatrix}$, $|A|$ is equal to

 
 
 
 

4. $(AB)^t$ is equal to

 
 
 
 

5. For any two matrices $A$ and $B$, $(A+B)^t$ is equal to

 
 
 
 

6. $(kAB)^t=$

 
 
 
 

7. If $AB=BA$ then which one is true

 
 
 
 

8. If $A$ is any square matrix of order 3, then $|kA|$ is equal to

 
 
 
 

9. If A+B=B+A=0$ then $B$ is called

 
 
 
 

10. If Adjoint of $A=\begin{bmatrix} -1&-2 \\ 3 & 4 \end{bmatrix}$ then matrix $A=$

 
 
 
 

11. Which of the property does not hold in matrix multiplication?

 
 
 
 

12. Let $A$ be any matrix and $n$ is an integer then $A+A+A+\cdots+$ to $n$ terms

 
 
 
 

13. If $A$ is a matrix of order $m\times n$ and $B$ is a matrix of order $n\times q$, then order of $AB$ is

 
 
 
 

14. If $[a_{ij}]=A$ and $[b_{ij}]=B$ then $A=B$ if and only if

 
 
 
 

15. If $A$ is of order $2\times 3$ and $B$ of order $4\times 2$ then order of $BA$

 
 
 
 

16. An inverse of a matrix exists if it is

 
 
 
 

17. Two matrix $A$ and $B$ are conformable for multiplication $AB$ if

 
 
 
 

18. If $A$ is a non-singular matrix then $A^{-1}$

 
 
 
 

19. If $A$ is any square matrix and $AB=BA=I$ then $B$ is called

 
 
 
 

20. If $A=[-7]$ then $|A|$ is equal to