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If any line perpendicular to the transve...

If any line perpendicular to the transverse axis cuts the hyperbola `(x^2)/(a^2)-(y^2)/(b^2)=1` and the conjugate hyperbola `(x^2)/(a^2)-(y^2)/(b^2)=-1` at points `Pa n dQ` , respectively, then prove that normal at `Pa n dQ` meet on the x-axis.

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