If the bisectors of the angles between the pairs of lines `ax^(2)+2hxy+by_(2)=0` and `ax^(2)+2hxy+by
Channel: Doubtnut
Date: 2020-05-24

If the bisectors of the angles between the pairs of lines `ax^(2)+2hxy+by_(2)=0` and `ax^(2)+2hxy+by^(2)+lamda(x^(2)+y^(2))=0` are coincident, then: `lamda=`