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 $A Δ B$ .

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Solution

The correct option is C $C a n n o t b e d e t e r m i n e d$
$n (A Δ B) = n (A) + n (B) - n (A \cap B)$
Here we don`t know the $n (A \cap B)$
So the answer cannot be Determined.

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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 AΔB.

The correct option is C Cannot be determinedn(AΔB)=n(A)+n(B)−n(A∩B)Here we don`t know the n(A∩B)So the answer cannot be Determined.

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 $A Δ B$ .

The correct option is C $C a n n o t b e d e t e r m i n e d$
$n (A Δ B) = n (A) + n (B) - n (A \cap B)$
Here we don`t know the $n (A \cap B)$
So the answer cannot be Determined.