Write the following as intervals :

$\{ x:x \in R,3\, \le \,x\, \le \,4\} $

Write the following intervals in set-builder form :

$\left[ {6,12} \right]$

Write the following sets in the set-builder form :

${\rm{\{ 5,25,125,625\} }}$

What universal set $(s)$ would you propose for each of the following :

The set of isosceles triangles

Write the following intervals in set-builder form :

$\left( { - 3,0} \right)$

Given the sets $A=\{1,3,5\}, B=\{2,4,6\}$ and $C=\{0,2,4,6,8\},$ which of the following may be considered as universal set $(s)$ for all the three sets $A$, $B$ and $C$

$\{0,1,2,3,4,5,6,7,8,9,10\}$