If the line given by `ax^(2)+2hxy+by^(2)=0` are equally inclined to the co-ordinate axes, then

If the lines ax^(2) + 2hxy + by^(2)= 0 are equally inclined with the coordinate axes then

If two lines ax^(2)+2hxy+by^(2)=0 are equally inclined with co-ordinate axes, then

If two lines ax^(2)+2hxy+by^(2)=0 are equally inclined with co-ordinate axes, then

If the lines given by ax^(2)+2hxy+by^(2)=0 are equally inclined to the lines given by ax^(2)+2hxy+by^(2)+lambda(x^(2)+y^(2))=0 , then

If the lines given by ax^(2)+2hxy+by^(2)=0 are equally inclined to the lines given by ax^(2)+2hxy+by^(2)+lambda(x^(2)+y^(2))=0 , then

If the lines given by ax^(2)+2hxy+by^(2)=0 are equally inclined to the lines given by ax^(2)+2hxy+by^(2)+lambda(x^(2)+y^(2))=0 , then

If the lines given by ax^(2)+2hxy+by^(2)=0 are equally inclined to the lines given by ax^(2)+2hxy+by^(2)+lambda(x^(2)+y^(2))=0 , then

If one of the lines given by kx^(2)+xy-y^(2)=0 bisects the angle between the co-ordinate axes, then k=

If two lines ax^(2)+2hxy+by^(2)=0 make equal angles with a co-ordinate axis, then

Prove that one of the straight lines given by ax^(2)+2hxy+by^(2)=0 will bisect the angle between the co-ordinate axes if (a+b)^(2)=4h^(2) .