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If N is the foot of the perpendicular dr...

If N is the foot of the perpendicular drawn from any point P on the ellipse `(x^(2))/(a^(2))+(y^(2))/(b^(2))=1`(a>b) to its major axis A`A^1` then `frac{PN^(2)}{AN*A^(1)N}= `

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