RAJASTHAN ­ PET Rajasthan PET Solved Paper-2005

  • question_answer
    If set A have 10 elements, then the number of relations from A to A is

    A)  \[10!\]              

    B)  \[{{10}^{10}}\]

    C)  \[{{2}^{10}}\]              

    D)  \[{{2}^{10}}-1\]

    Correct Answer: B

    Solution :

     If a set A have n elements, then number of relations from A to\[A={{n}^{n}}\]. Here, set A have 10 elements, then number of relations\[={{10}^{10}}\].


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