## 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