State which of the following sets are finite or infinite :
$\{ x:x \in N$ and $x$ is odd $\} $
Since there are infinite number of odd numbers, hence, the given set is infinite.
$A = \{ x:x \ne x\} $ represents
$\{ x:x \in N$ and $x$ is prime $\} $
Consider the sets
$\phi, A=\{1,3\}, B=\{1,5,9\}, C=\{1,3,5,7,9\}$
Insert the symbol $\subset$ or $ \not\subset $ between each of the following pair of sets:
$B \ldots \cdot C$
Assume that $P(A)=P(B) .$ Show that $A=B$.
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\} $
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