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JEE Main & Advanced Mathematics Sets Question Bank Self Evaluation Test - Sets

  • question_answer
    If the cardinality of a set A is 4 and that of a set B in 3, then what is the cardinality of the set A \[\Delta \] B?

    A) 1

    B) 5

    C) 7

    D) Cannot be determined as the sets A and B are not given

    Correct Answer: D

    Solution :

    [d]Given, \[n(A)=4,\,\,n(B)=3\] Since, the sets A and B are not known, then cardinality of the set A\[\Delta \]B cannot be determined.


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