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?)
$A=\{a, e, i, o, u\}$ and $B=\{a, b, c, d\}$
( $i$ ) For a set to be a subset of another set, it needs to have all elements present in the another
set.
In set $A,\{e, i, o, u\}$ elements are present but these are not present in set $B$
Hence $A$ is not a subset of $B$.
(ii) For this condition to be true, are elements of sets $B$ should be present in set $A$
In set $B,\{b, c, d\}$ elements are present but these elements are not present in set $A$
Hence $B$ is not a subset of $A$
Write the set $\{ x:x$ is a positive integer and ${x^2} < 40\} $ in the roster form.
State whether each of the following set is finite or infinite :
The set of lines which are parallel to the $x\,-$ axis
In each of the following, determine whether the statement is true or false. If it is true, prove it. If it is false, give an example.
If $A \subset B$ and $B \subset C,$ then $A \subset C$
If $Q = \left\{ {x:x = {1 \over y},\,{\rm{where \,\,}}y \in N} \right\}$, then
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 $C$
$\varnothing$