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

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

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

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

5. $(kAB)^t=$

6. An inverse of a matrix exists if it is

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

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

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

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

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

12. 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

13. If A+B=B+A=0$then$B$is called 14. If Adjoint of$A=\begin{bmatrix} -1&-2 \\ 3 & 4 \end{bmatrix}$then matrix$A=$15.$(AB)^t$is equal to 16. Two matrix$A$and$B$are conformable for multiplication$AB$if 17. If$A=[-7]$then$|A|$is equal to 18. For any two matrices$A$and$B$,$(A+B)^t$is equal to 19. If$A$is any square matrix and$AB=BA=I$then$B$is called 20. If$A$is any square matrix of order 3, then$|kA|\$ is equal to