If the angle between the lines represented by the equation x^2+ x y-y^2 ^2 =0 is 2 , then the value of is

Step-by-step solution

Given equation of pair of lines is array ll & x^2+ x y-y^2 ^2 =0 & a =1, ~h = 2 , ~b =- ^2 & 2 = | 2 h ^2- ab a + b | & 2 1- ^2 = | 2 ^2 4 + ^2 1- ^2 | & ^2 4 + ^2 = ^2 & =0 array