For Question $9$ refer to the following matrices.

$31512$

B

$571824$

A $$

$$

$$

Q$\mathrm{.}9$: Using MATLAB find value of element c$2,2$ of matrix C$,$ where C$=$A$.*$B$.$

Q$\mathrm{.}10$: Which statement$($s$)$ are correct?

a$)$ The MATLAB command for the determinant of matrix A is det$($A$).$

b$)$ The MATLAB command for the determinant of matrix A is $|$A$|.$

c$)$ The MATLAB command for the inverse of matrix A is inv$($A$).$

d$)$ The MATLAB command for the inverse of matrix A is inverse$($A$).$