List all the elements of the following sers :

$A = \{ x:x$ is an odd natural number $\} $

In the following state whether $\mathrm{A = B}$ or not :

$A = \{ 2,4,6,8,10\} ;B = \{ x:x$ is positiveeven integer and $x\, \le \,10\} $

Write the following as intervals :

 $\{ x:x \in R, - 4\, < \,x\, \le \,6\} $

State which of the following sets are finite or infinite :

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

Write the following as intervals :

$\{ x:x \in R,0\, \le \,x\, < \,7\} $

Which of the following are sets ? Justify your answer.

The collection of all natural numbers less than $100 .$