1.

Let a = e^("i" (2pi)/(13))then the quadratic equation whose rootsare alpha=a+a^(3) +a^(4)+a^(-4) +a^(-3) +a^(-1), beta =a^(2)+a^(5)+a^(6) +a^(-6)+a^(-5) +a^(-2) is given by

Answer»

`X^(2)-x-3=0`
`x^(2)-x+2=0`
`x^(2)+x+2=0`
`x^(2)+x-3=0`

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