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If the cardinality of a set $A$ is 4 and that of a set $B$ is 3 , then what is the cardinality of the set $A \Delta B$ ?
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Cannot be determined as the sets $A$ and $B$ are not given
Given, $n(A)=4, n(B)=3$ Since, the sets A and B are not known, then cardinality of the set $\mathrm{A} \Delta \mathrm{B}$ cannot be determined.
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