State which of the following sets are finite or infinite :

$\{ x:x \in N$ and $x$ is prime $\} $

Let $A=\{1,2,3,4,5,6\} .$ Insert the appropriate symbol $\in$ or $\notin$ in the blank spaces:

$ 5\, .......\, A$

State which of the following sets are finite or infinite :

$\{ x:x \in N$ and $2x - 1 = 0\} $

Examine whether the following statements are true or false :

$\{ a,b\}  \not\subset \{ b,c,a\} $

In the following state whether $A=B$ or not :

$A=\{4,8,12,16\} ; B=\{8,4,16,18\}$

List all the elements of the following sers :

$B = \{ x:x$ is an integer $; - \frac{1}{2} < n < \frac{9}{2}\} $