If 2-i \sqrt{3} where i=\sqrt{-1} is a root of the equation x^2+a x+b=0, then what is the value of (a+b) ? [NDA I 2023]

UPSC NDA I 2023 Mathematics Solved Paper

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If 2−i√3 where i=√−1 is a root of the equation x2+ax+b=0, then what is the value of (a+b) ?

[NDA I 2023]

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