12th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-12

  • question_answer
    The system of equations
    \[\alpha x+y+z=\alpha -1\]
    \[x+\alpha y+z=\alpha -1\]
    \[x+y+\alpha z=\alpha -1\]
    has no solution, if \[\alpha \] is ________.

    A)  1                                

    B)  \[either~-2\,\,or\text{ }1\]

    C)  \[-2\]   

    D)  2

    E)  None of these

    Correct Answer: C

    Solution :

    Not Available                

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