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If the equation a x^2-6x y+y^2+bx +cy+d=...

If the equation `a x^2-6x y+y^2+bx +cy+d=0` represents a pair of lines whose slopes are `m` and `m^2,` then the value(s) of `a` is/are

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CENGAGE PUBLICATION-STRAIGHT LINES-All Questions
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