1.

If z= cos.(2pi)/(2n +1) +isin.(2pi)/(2n+1), n is a positive integer, then the equation whose roots are alpha = z+ z^(3)+ ….+ z^(2n-1)and beta = z^2 + z^4 + ….+ z^(2n). Is ________________.

Answer»


ANSWER :`4X^2 + 4x + sec^2 (PI)/(2n+1)=0`.


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