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 $C$
$\{ 1,2,3,4,5,6,7,8\} $
$A \subset\{1,2,3,4,5,6,7,8\}$
$B \subset\{1.2,3,4,5,6,7,8\}$
Howerer, $C \not\subset \{ 1,2,3,4,5,6,7,8\} $
There fore, the set $\{1,2,3,4,5,6,7,8\}$ cannot be the universal set for the sets $A , B$ and $C.$
Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?
$\{1,2,5\}\subset A$
Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?
$\{\varnothing\} \subset A$
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 $C$
$\varnothing$
Write the following sets in roster form :
$\mathrm{E} =$ The set of all letters in the world $\mathrm{TRIGONOMETRY}$
Write the set $\{ x:x$ is a positive integer and ${x^2} < 40\} $ in the roster form.