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Show that the equation of the pair of lines bisecting the angles between the pair of bisectors of the angles between the pair of lines `ax^(2)+2hxy+by^(2)=0` is `(a-b)(x^(2)-y^(2))+4hxy=0`

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CENGAGE PUBLICATION-STRAIGHT LINES-All Questions
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  15. The distance between the two lines represented by the equation 9x^2-2...

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