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[" Pis a variable point on the ellipse "(x^(2))/(a^(2))+(y^(2))/(b^(2))=2" Whose fociare "F_(1)&F_(2)" .The maximum area (in unit) of the "],[Delta PF_(1)F_(2)" is- "],[[" (a) "2b sqrt(a^(2)-b^(2))," (b) "sqrt(2b)sqrt(a^(2)-b^(2))," (c) "b sqrt(a^(2)-b^(2))," (d) "2a sqrt(a^(2)-b^(2))]]

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