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JEE Main & Advanced Mathematics Functions Question Bank Functions

  • question_answer
    Let x be a non-zero rational number and y be an irrational number. Then xy is                    [Orissa JEE 2004]

    A)            Rational

    B)            Irrational

    C)            Non-zero

    D)            None of these

    Correct Answer: B

    Solution :

               Obviously, it is an irrational number for maximum \[x=2,y=\sqrt{3}\] then \[2\sqrt{3}\]is an irrational number.


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