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Let ax^(2)+2hxy+by^(2)=0 represent a pai...

Let `ax^(2)+2hxy+by^(2)=0` represent a pair of straight lines. Then show that the equation of the pair of straight lines.
Passing through `(x_(0),y_(0))` and parallel to the given pair of lines is `a(x-x_(0))^(2)+2h(x-x_(0))(y-y_(0))+b(y-y_(0))^(2)=0`

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