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Consider the ellipe (x^(2))/(4)+y^(2)= r...

Consider the ellipe `(x^(2))/(4)+y^(2)= rho` and its given chord x-y=1 . For what values of p, the pair of tangents drawn from an external point to the ellipse meet the give chord at its extremities and the reflection of the external point about the given chord lie within the ellipse .

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