1.

Let \[\alpha ,{{\alpha }^{2}}\]be the roots of \[{{x}^{2}}+x+1=0\], then the equation whose roots are \[{{\alpha }^{31}},{{\alpha }^{62}}\]is [AMU 1999]

A. \[{{x}^{2}}-x+1=0\]
B. \[{{x}^{2}}+x-1=0\]
C. \[{{x}^{2}}+x+1=0\]
D. \[{{x}^{60}}+{{x}^{30}}+1=0\]
Answer» D. \[{{x}^{60}}+{{x}^{30}}+1=0\]


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