1.

Let \[\alpha \]and \[\beta \] be the roots of the equation \[{{x}^{2}}+x+1=0\] The equation whose roots are \[{{\alpha }^{19}},{{\beta }^{7}}\] is [IIT Screening 1994]

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


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