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The sum of the squares of the distances of a moving point from two fixed points (a,0) and `(-a ,0)` is equal to a constant quantity `2c^2dot` Find the equation to its locus.

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The sum of the squares of the distances of a moving point from two fixed points (a ,0)a n d(-a ,0) is equal to a constant quantity 2c^2dot Find the equation to its locus.

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