[" Given,"z=cos(2 pi)/(2n+1)+i sin(2 pi)...

[" Given,"z=cos(2 pi)/(2n+1)+i sin(2 pi)/(2n+1)," 'n' a positive integer,find the equation whose roots are,"],[alpha=z+z^(3)+.....+z^(2n)-1quad &^(2)beta=z^(2)+z^(4)+.....+z^(2n)],[[REE2000" (Mains) "3" out of "100]]

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