RAJASTHAN ­ PET Rajasthan PET Solved Paper-2010

  • question_answer
    If X and Y are two sets, then\[X\cap (Y\cup X)'\]is equal to

    A)  \[X\]                

    B)  \[Y\]

    C)  \[\phi \]   

    D)  None of these

    Correct Answer: C

    Solution :

     \[X\cap (Y\cup X)'=(Y\cup X)'\cap X\] \[=(Y'\cap X')\cap X\] \[=Y'\cap (X'\cap X)\] \[=Y'\cap \phi =\phi \]               


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