Which set is the subset of all given sets
$\{1, 2, 3, 4,......\}$
$\{1\}$
$\{0\}$
$\{\}$
Which of the following are examples of the null set
$\{ x:x$ is a natural numbers, $x\, < \,5$ and $x\, > \,7\} $
Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?
$1 \in A$
Write the following intervals in set-builder form :
$\left[ {6,12} \right]$
Write the solution set of the equation ${x^2} + x - 2 = 0$ in roster form.
The set $A = \{ x:x \in R,\,{x^2} = 16$ and $2x = 6\} $ equals