If the equation `ax^2 +2hxy + by^2 = 0 and bx^2 - 2hxy + ay^2 =0` represent the same curve, then show that `a+b=0`.

The equations a^2x^2+2h(a+b)xy+b^2y^2=0 and ax^2+2hxy+by^2=0 represent.

If the equations ax^2 + 2hxy+by^2 =0 and y^2 - (m_1 + m_2) xy+m_1 m_2 x^2 =0 represent the same curve, find m_1 +m_2 and m_1 m_2 .

the equation ax^(2)+ 2hxy + by^(2) + 2gx + 2 fy + c=0 represents an ellipse , if

For the equation ax^(2) +by^(2) + 2hxy + 2gx + 2fy + c =0 where a ne 0 , to represent a circle, the condition will be

If the equation ax^(2)+hxy+by^(2)+4gx+6fy+4c=0 represents a pair of lines then

If the equation ax^(2)+2hxy+by^(2)=0 represented two lines y=m_(1)x and y=m_(2)x the

If the equation ax^(2)+2hxy+by^(2)+2gx+2fy+c=0 represents a pair of parallel lines, then