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[" If "f_(1)" and "t_(2)" are the roots of the equation "t^(2)+lambda t+1=0" .Where "lambda" is an artbittary constant.Ther "],[" joining the points "(at_(1)^(2),2at_(1))" and "(at_(1)^(2),2at_(2))" always passes through fired point "],[[" (A) "(a,0)," (B) "(8)-a,0)," (C) "(0,a)," (O) "(0,-a)]]

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