If `7x^(2)-kxy-7y^(2)=0` represents the joint equation of the bisectors of the angles
Channel: Doubtnut
Date: 2020-06-14

If `7x^(2)-kxy-7y^(2)=0` represents the joint equation of the bisectors of the angles between the lines given by `2x^(2)-7xy+4y^(2)=0`, then k=