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 $C.$
Which of the following is a true statement
Write the set $\{ x:x$ is a positive integer and ${x^2} < 40\} $ in the roster form.
Let $A=\{a, e, i, o, u\}$ and $B=\{a, b, c, d\} .$ Is $A$ a subset of $B ?$ No. (Why?). Is $B$ a subset of $A ?$ No. (Why?)
Write the following as intervals :
$\{ x:x \in R,3\, \le \,x\, \le \,4\} $
If $Q = \left\{ {x:x = {1 \over y},\,{\rm{where \,\,}}y \in N} \right\}$, then