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If the lines lx+my+n=0 passes through th...

If the lines `lx+my+n=0` passes through the extremities of a pair of conjugate diameters of the hyperbola `(x^(2))/(a^(2))-(y^(2))/(b^(2))=1`, show that `a^(2)l^(2)-b^(2)m^(2)=0`.

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