11th Class Mathematics Sample Paper Mathematics Olympiad - Sample Paper-12

  • question_answer Let \[\alpha \] and \[\beta \] be the roots of the equation\[{{x}^{2}}+x+1=0\,\], then the equation whose root are \[{{\alpha }^{19}},{{\beta }^{7}}\] is

    A)  \[{{x}^{2}}-x-1=0\]

    B)  \[{{x}^{2}}-x+1=0\]

    C)  \[{{x}^{2}}+x-1=0\]

    D)         \[{{x}^{2}}+x+1=0\]

    Correct Answer: D


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