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[" If the roots of the equation "(1)/(x+...

[" If the roots of the equation "(1)/(x+a)+(1)/(x+b)=(1)/(c)" are equal in magnitude but opposite in sign,then their product is:"],[[" (A) "(1)/(2)(a^(2)+b^(2)),(-1)/(2)(a^(2)+b^(2))," (C) "(1)/(2)ab," (D) "-(1)/(2)ab]]

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