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  3. 12th Class
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12th Class Mathematics Sample Paper Maths Olympiad Model Paper-1

  • question_answer
    If the system of equations \[x-ky-z=0,\]\[kx-y-z=0,\]\[x+y-z=0\] has a non-zero solution, then possible values of k are:

    A)  \[-1,\text{ }2\]              

    B)  1, 2

    C)  0, 1                             

    D)  \[-1,\text{ }1\]

    E)  None of these

    Correct Answer: D

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