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Assertion (A) : If alpha=cos((2pi)/(7))+isin((2pi)/(7)),p=alpha+alpha^2+alpha^4,q=alpha^3+alpha^5+alpha^6 then the equation whose roots are p and q is x^2+x+2=0Reason (R) : If alpha is a roots of z^7=1 then 1+alpha+alpha^2+…...+alpha^6=0

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Both A and R are true R is CORRECT EXPLANATION to A
Both A and R are true but R is not correct explanation to A
A is true R is FALSE
A is false R is true

Answer :A


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