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1.Set Theory
easy
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?)
Option A
Option B
Option C
Option D
Solution
$A=\{a, e, i, o, u\}$ 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 $A$
Standard 11
Mathematics
