If $-\frac{1}{3x - 5} \leq 0$, then :

If A is a non-singular square matrix of order n, then which of the following are TRUE ?

A. $|adj A|=|A|^{n-1}$

B. $|adj A|=|A|^{n-2}$

C. $|adj (adj A)|=|A|^{(n-2)^2}$

D. $|adj (adj A)|=|A|^{(n-1)^2}$

Choose the correct answer from the options given below:

The area of the triangle with vertices $(1,4), (2,7)$ and $(4,13)$ is :

The number of all possible matrices of order 3 $\times$ 3 with each entry 2 or 3 is.

The digit in the unit's place of $13^{37}$ is :

The least positive integer X satisfying $28 \equiv x (\mod 6)$ is :

If A is a skew symmetric matrix, then $A^2$ is