Which of the following sets are finite or infinite.
The set of months of a year
Write the following intervals in set-builder form :
$\left[ {6,12} \right]$
Decide, among the following sets, which sets are subsets of one and another:
$A = \{ x:x \in R$ and $x$ satisfy ${x^2} - 8x + 12 = 0 \} ,$
$B=\{2,4,6\}, C=\{2,4,6,8 \ldots\}, D=\{6\}$
Let $A=\{1,2,3,4,5,6\} .$ Insert the appropriate symbol $\in$ or $\notin$ in the blank spaces:
$ 5\, .......\, A$
The set $A = \{ x:x \in R,\,{x^2} = 16$ and $2x = 6\} $ equals